1999 Mercury Grand Marquis Motor Oil

Essential 1999 Mercury Grand Marquis Motor Oil

Castrol – GTX 10W-30 Conventional Motor Oil: 1 Quart (Part No.15B400)

GTX 10W-30 Conventional Motor Oil: 1 Quart

from

$9.99
Sludge can block your engine’s vital oilways like cholesterol and if untreated, can rob an engine of its power and ultimately its life. Castrol GTX is a premium conventional motor oil that has been helping to extend engine life for over 50 years. It has evolved to meet the needs of consumers and vehicle manufacturers since 1968 and continues to innovate and remain a trusted brand today. Severe driving conditions such as heavy traffic, poor fuel quality, harsh driving conditions and exceeding oil change intervals can all cause the build-up of a thick, tar like substance called sludge. If untreated, it can rob a car’s engine of its power and ultimately its life. GTX is specially engineered to prevent harmful build-up of sludge while protecting against new oil splatter formation better than tough industry standards. Help Extend the Life of Your Engine with Castrol GTX.

Product Features:
  • Superior protection against engine sludge (When tested in engines with a high level of sludge)
  • Advanced protection against viscosity and thermal breakdown
  • Premium quality base oils and anti-wear additives to help extend the life of your engine
  • Helps minimize oil consumption
See More

Valvoline – Full Synthetic High Mileage with MaxLife Technology 5W-30 Engine Oil: Maximizes Engine Life, 5 Quart (Part No.881169)

Full Synthetic High Mileage with MaxLife Technology 5W-30 Engine Oil: Maximizes Engine Life, 5 Quart

from

$37.99
Upgrading your motor oil to Valvoline Full Synthetic High Mileage with MaxLife Technology can help you increase the longevity of your car, truck or SUV with over 75,000 miles. It’s proven to protect your high-mileage motor against wear, friction, heat, and deposits – the leading causes of engine breakdown and expensive repairs. Our exclusive formulation goes beyond industry standards to protect your engine. It’s fortified with enhanced wear additives and friction-fighting agents to safeguard critical engine components, extra detergents to clean inside your engine, and premium seal conditioners to restore aging seals and prevent leaks. Superior viscosity modifiers and high-quality base oils help it perform exceptionally in both high and low temperatures. Engineered with ingenuity, tested with tenacity, and proven with purpose, our formula was innovated in America with a century and a half of hands-on experience from the original motor oil brand.

Product Features:
  • Enhanced maxlife technology prevents engine breakdown in extreme conditions with 50% better wear protection than the industry standard
  • Treat and prevent leaks with premium seal conditioners to keep oil out of places it shouldn’t be
  • 25% extra defense against deposits, sludge, corrosion and rust via interior-cleansing detergents
  • Extreme temperature protection through our high-quality base oils and superior viscosity modifiers
  • Meets or exceeds all requirements of ilsac gf-6a, api sp, api sn with sn plus, api sn
  • High Mileage Protection: Valvoline Full Synthetic High Mileage Engine Oil is specially designed to protect engines with over 75,000 miles against wear, friction, heat, and deposits, ensuring a longer lifespan for your vehicle.
See More

Castrol – EDGE High Mileage 5W-30 Advanced Full Synthetic Engine Oil: 5 Qt (Part No.15906E)

EDGE High Mileage 5W-30 Advanced Full Synthetic Engine Oil: 5 Qt

from

$38.99
Castrol EDGE High Mileage with Fluid TITANIUM Technology is the natural choice for drivers who demand maximum performance from their high mileage cars, which often operate at extreme temperatures. Castrol EDGE High Mileage provides up to 10X better high temperature performance than the latest industry standard to ensure optimal protection and oil flow over the drive cycle. As your car ages, it can lose performance and efficiency and is also more prone to catalytic converter failure. Castrol EDGE High Mileage is liquid engineered with Phosphorous Replacement Technology to reduce harmful phosphorus to protect the catalytic converter and preserve the life of your emission system. Castrol EDGE High Mileage helps your car defy its miles and extend maximum performance.

Product Features:
  • Patented phosphorus replacement technology to help extend the life of your emission system
  • 10x better high temperature performance (as measured in sequence iiih engine test vs. api sp test limit)
  • 6x better wear protection (as measured in latest sequence iva engine test)
  • 1.4x better sludge protection (as measured in sequence vh engine test vs. api sp test limit)
  • Maximum Performance: Castrol EDGE High Mileage with Fluid TITANIUM Technology is designed to provide maximum performance for high mileage cars, even in extreme temperatures.
  • Protects Catalytic Converter: Castrol EDGE High Mileage is liquid engineered with Phosphorous Replacement Technology to reduce harmful phosphorus, protecting the catalytic converter and preserving the life of your emission system.
See More

FRAM – Conventional 10W40 Engine Oil with Low-Speed Pre-Ignition Control – 1 Qt (Part No.F640)

Conventional 10W40 Engine Oil with Low-Speed Pre-Ignition Control - 1 Qt

from

$6.49
FRAM Engine Oil SAE 10W-40 engine oil utilizes high-quality base stocks and a robust  additive system to provide reliable engine protection across a broad range of operating  conditions. Specifically formulated for use in modern gas-direct engines (GDI) and turbo gas direct engines (TGDI) as well as older carbureted or normally fuel injected gasoline engine  designs. FRAM Engine Oil SAE 10W-40 contains additive technology designed to prevent  low-speed pre-ignition (LSPI) while also providing increased wear protection, oxidation and  shear stability over previous oil categories. The FRAM Engine Oil SAE 10W-40 meets the  requirements for API SP, SN Plus, SN, SM and earlier API Service Categories.

Product Features:
  • Low-speed pre-ignition control
  • Chain wear protection
  • Piston cleanliness
  • Turbo-compatibility
  • Low-speed pre-ignition control
  • Chain wear protection
  • Piston cleanliness
  • Turbo-compatibility
  • Always refer to your vehicles operating manual to select the correct grade oil for your engine.
See More

Pennzoil – Platinum 5W-20 Full Synthetic Engine Oil, 5 Quart (Part No.550046122)

Platinum 5W-20 Full Synthetic Engine Oil, 5 Quart

from

$37.99
Pennzoil Platinum full synthetic SAE 5W-20 motor oil is uniquely engineered from our revolutionary PurePlus gas-to-liquid technology, which is a patented process that converts pure natural gas into a high quality, full synthetic base oil. Our high-quality base oil is 99.5% pure, contains fewer impurities than base oils made from crude oil, and when combined with our advanced additive technology, creates one of the best formulations in our Pennzoil portfolio. Pennzoil Platinum full synthetic SAE 5W-20 motor oil is licensed and meets the vehicle warranty requirements of GM’s dexos 1 Gen 2 specifications that are set forth to meet today’s modern engine technologies. This means that our Pennzoil Platinum full synthetic products meet the stringent requirements of leading car manufacturers. Why does this matter? Modern engine technologies have evolved over the years and today’s engine parts have reached an unprecedented level of fine manufacturing tolerances which require a high-quality engine oil to help provide complete engine protection. This includes protection against abnormal combustion phenomenon like low-speed pre-ignition observed in modern turbocharged gasoline direct injection (TGDI) engines. Our Pennzoil Full Synthetic products are engineered for modern engines and offer the following benefits without compromise. Better Fuel Economy. With Pennzoil Platinum full synthetic motor oil, you can drive on average an extra 550 miles vs a dirty engine. Protects Horsepower. Pennzoil Platinum Full Synthetic motor oil helps protect against loss of power by helping to protect your engine against wear and deposit formation. Unsurpassed Wear Protection. When it comes to protecting the internal parts of your engine from metal-on-metal contact, no other leading synthetic motor oil provides better wear protection than Pennzoil Platinum Full Synthetic motor oil. Excellent Temperature Performance.

Product Features:
  • Provides better fuel economy-drive on average an extra 550 miles per year (versus a dirty engine)
  • Pennzoil platinum 0w-20 keeps pistons up to 45% cleaner than the toughest industry standard (based on sequence iiih results)
  • No other leading synthetic oil provides better wear protection from friction (based on sequence iva wear test using sae 5w-30)
  • Formulated to provide faster low-temperature oil flow and protection in extreme heat
  • Helps protect engines from loss of power
  • Formulated for modern turbocharged engines-gf-6, api sp/sp-resource conserving and all previous categories
See More

Valvoline – Full Synthetic High Mileage with MaxLife Technology 5W-20 Engine Oil: Maximizes Engine Life, 1 Quart (Part No.849644)

Full Synthetic High Mileage with MaxLife Technology 5W-20 Engine Oil: Maximizes Engine Life, 1 Quart

from

$11.99
Upgrading your motor oil to Valvoline Full Synthetic High Mileage with MaxLife Technology can help you increase the longevity of your car, truck or SUV with over 75,000 miles. It’s proven to protect your high-mileage motor against wear, friction, heat, and deposits – the leading causes of engine breakdown and expensive repairs. Our exclusive formulation goes beyond industry standards to protect your engine. It’s fortified with enhanced wear additives and friction-fighting agents to safeguard critical engine components, extra detergents to clean inside your engine, and premium seal conditioners to restore aging seals and prevent leaks. Superior viscosity modifiers and high-quality base oils help it perform exceptionally in both high and low temperatures. Engineered with ingenuity, tested with tenacity, and proven with purpose, our formula was innovated in America with a century and a half of hands-on experience from the original motor oil brand.

Product Features:
  • Enhanced maxlife technology prevents engine breakdown in extreme conditions with 50% better wear protection than the industry standard
  • Treat and prevent leaks with premium seal conditioners to keep oil out of places it shouldn’t be
  • 25% extra defense against deposits, sludge, corrosion and rust via interior-cleansing detergents
  • Extreme temperature protection through our high-quality base oils and superior viscosity modifiers
  • Meets or exceeds all requirements of ilsac gf-6a, api sp, api sn with sn plus, api sn
  • High Mileage Oil Class: Valvoline MaxLife Synthetic Engine Oil is specially designed for engines with over 75,000 miles, making it the perfect choice for high mileage vehicles.
See More

FRAM – Conventional 20W-50 Motor Oil: 1 Quart (Part No.F650)

Conventional 20W-50 Motor Oil: 1 Quart

from

$6.49
FRAM Engine Oil SAE 20W-50 utilizes a blend of high-quality conventional base stocks coupled with a robust additive system to provide reliable engine protection across a broad range of operating conditions. Specifically formulated for use in modern gas-direct engines (GDI) and turbo gas-direct engines (TGDI) as well as older carbureted or normally fuel injected gasoline engine designs. FRAM Engine Oil SAE 20W-50 contains additive technology designed to prevent low-speed pre-ignition (LSPI) while also providing increased wear protection, oxidation and shear stability over previous oil categories. FRAM Engine Oil SAE 20W-50 meets the requirements for API SP, SN Plus, SN, SM and ILSAC GF-6A, GF-5 and earlier API and ILSAC Service Categories.

Product Features:
  • Low-Speed Pre-Ignition Control
  • Chain Wear Protection
  • Piston Cleanliness
  • Turbo-Compatibility
  • ALWAYS REFER TO YOUR VEHICLES OPERATING MANUAL TO SELECT THE CORRECT GRADE OIL FOR YOUR ENGINE.
See More

Castrol – EDGE Full Synthetic High Mileage Motor Oil, 5W-30 (1 Quart) (Part No.6128)

EDGE Full Synthetic High Mileage Motor Oil, 5W-30 (1 Quart)

from

$12.49
Castrol® EDGE® High Mileage is 3X stronger against viscosity breakdown than the leading full synthetic oil. Castrol EDGE High Mileage full synthetic motor oil is designed for older cars with over 75,000 miles that need a high mileage oil to protect worn seals, prevent leaks, remove engine sludge and prevent wear and tear of the engine. As your car ages, its engine can lose performance and efficiency. Proper maintenance is critical to keep your older car performing at its best. Tested in the ASTM D6278 test in the 5W-30 viscosity grade.

Product Features:
  • Boosted with extra fluid titanium technology to protect your older engine
  • Maximizes short and long term engine performance on high mileage engines
  • Reduces leaks, oil burn off and power-robbing deposits
  • Improves fuel economy
  • Castrol EDGE offers motor oils that meet OEM specification approvals or licenses that cover over 97.3% of the US car parc.
  • Available in the following grades: 5W-20, 5W-30, 10W-30, and 10W-40
  • Try Castrol EDGE High Mileage today
See More

Castrol – 1 Qt Full Synthetic 5W-20 Engine Oil – 3X Stronger Against Viscosity Breakdown (Part No.15B743)

1 Qt Full Synthetic 5W-20 Engine Oil - 3X Stronger Against Viscosity Breakdown

from

$9.99
Castrol Ultraclean synthetic blend engine oil is our cleanest GTX ever. Environmental factors such as poor fuel quality, hot weather and stop-start driving conditions can lead to the buildup of sludge that can reduce engine life, power and fuel economy. Castrol Ultraclean has a double-action formula proven to clean away the sludge that can block engine oilways and helps prevent new sludge formation from occurring. In fact, it provides up to 1.4X better sludge protection than is demanded by the latest industry standard (as measured in the Sequence VH Sludge test vs. API SP test limits). No other oil keeps engines cleaner.

Product Features:
  • Premium-quality base oils and anti-wear additives that help extend the life of your engine
  • 1.4x superior sludge protection compared to tough industry standards, as measured in the sequence vh sludge test vs. api sp test limits
  • Advanced protection against viscosity and thermal breakdown
  • Superior protection against high-temperature deposits
  • Meets or exceeds api sp/sn plus/sn, ilsac gf-6 and latest ford specs
  • Unsurpassed thermal breakdown protection: GTX Engine Oil, 5W-20 provides superior protection against thermal breakdown, ensuring that your engine stays protected even under extreme temperatures.
See More

Castrol – EDGE High Mileage 5W-20 Advanced Full Synthetic Engine Oil: 5 Quart (Part No.15906D)

EDGE High Mileage 5W-20 Advanced Full Synthetic Engine Oil: 5 Quart

from

$38.99
Castrol EDGE High Mileage with Fluid TITANIUM Technology is the natural choice for drivers who demand maximum performance from their high mileage cars, which often operate at extreme temperatures. Castrol EDGE High Mileage provides up to 10X better high temperature performance than the latest industry standard to ensure optimal protection and oil flow over the drive cycle. As your car ages, it can lose performance and efficiency and is also more prone to catalytic converter failure. Castrol EDGE High Mileage is liquid engineered with Phosphorous Replacement Technology to reduce harmful phosphorus to protect the catalytic converter and preserve the life of your emission system. Castrol EDGE High Mileage helps your car defy its miles and extend maximum performance.

Product Features:
  • Patented phosphorus replacement technology to help extend the life of your emission system
  • 10x better high temperature performance (as measured in sequence iiih engine test vs. api sp test limit)
  • 6x better wear protection (as measured in latest sequence iva engine test)
  • 1.4x better sludge protection (as measured in sequence vh engine test vs. api sp test limit)
  • Maximum Performance: Castrol EDGE High Mileage Engine Oil is designed to provide maximum performance for high mileage cars that often operate at extreme temperatures.
  • Improved High Temperature Performance: With Fluid TITANIUM Technology, this engine oil provides up to 10X better high temperature performance than the latest industry standard, ensuring optimal protection and oil flow over the drive cycle.
See More

FRAM – Conventional 5W20 Engine Oil with Low-Speed Pre-Ignition Control – 1 Qt (Part No.F610)

Conventional 5W20 Engine Oil with Low-Speed Pre-Ignition Control - 1 Qt

from

$6.49
FRAM Engine Oil SAE 5W-20 utilizes a blend of high-quality conventional and synthetic base stocks coupled with a robust additive system to provide reliable engine protection across a broad range of operating conditions. Specifically formulated for use in modern gas-direct engines (GDI) and turbo gas-direct engines (TGDI) as well as older carbureted or normally fuel injected gasoline engine designs. FRAM Engine Oil SAE 5W-20 contains additive technology designed to prevent low-speed pre-ignition (LSPI) while also providing increased wear protection, oxidation and shear stability over previous oil categories. FRAM Engine Oil SAE 5W-20 meets the requirements for API SP, SN Plus, SN, SM and ILSAC GF-6A, GF-5 and earlier API and ILSAC Service Categories.

Product Features:
  • Low-speed pre-ignition control
  • Chain wear protection
  • Piston cleanliness
  • Turbo-compatibility
  • Always refer to your vehicles operating manual to select the correct grade oil for your engine.
  • Reliable engine protection: FRAM Conventional Oil 5W20 1 QT utilizes a blend of high-quality conventional and synthetic base stocks coupled with a robust additive system to provide reliable engine protection across a broad range of operating conditions.
See More

Mobil 1 – High Mileage Full Synthetic Motor Oil 10W-30, 5 Quart (Part No.14995)

High Mileage Full Synthetic Motor Oil 10W-30, 5 Quart

from

$38.99
Give your higher mileage engine the care it deserves with Mobil 1 High Mileage full-synthetic motor oil 10W-30. This formula utilizes Mobil 1’s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness to vehicles with over 75,000 miles. Mobil 1 High Mileage motor oil extends engine life by reducing friction and preventing deposits and sludge buildup, keeping critical engine parts clean and protected for up to 10,000 miles between oil changes. (1) Mobil 1 helps to keep your engine running at lower temperatures (2) and is proven to cool engine temperatures by over 10%. (3) Mobil 1 High Mileage full-synthetic motor oil 10W-30 also helps control oxidation to prevent oil breakdown and is recommended by ExxonMobil for all types of modern cars, SUVs, light vans, and light trucks, including those with high-performance, turbocharged, supercharged, multi-valve, or fuel-injected engines. Mobil 1 is America’s #1 selling synthetic motor oil brand at retail, (4) trusted and recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR«. ( (1) Protects for up to 10,000 miles or 1 year, whichever comes first. To learn more about the Mobil 1 Limited Warranty, visit Mobil.US. (2) Compared to conventional oil. (3) Based on proprietary engine testing┐results may vary. (4) Source: The NPD Group/ Retail Tracking Service/ Dollar Sales/ PCMO full-synthetic/ 52 weeks ending Feb 25, 2023)

Product Features:
  • Mobil 1 High Mileage full-synthetic motor oil 10W-30 is designed for engines with over 75,000 miles to go up to 10,000 miles between oil changes.(1)
  • Utilizes Mobil 1’s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness
  • Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy
  • Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -30 degrees F)
  • Mobil 1 is specially formulated to help remove sludge and lower engine temperatures
  • Manufacturer Part Number: 120770
See More

Royal Purple – HMX SAE 5W-20 High-Mileage Synthetic Motor Oil (5 Quart) (Part No.17518)

HMX SAE 5W-20 High-Mileage Synthetic Motor Oil (5 Quart)

from

$65.99
Royal Purple HMX SAE 5W-20 High-Mileage Synthetic Motor Oil, 5 quart is specifically designed to minimize wear and restore lost performance in engines with more than 75,000 miles. Formulated with robust zinc/phosphorus anti-wear compounds combined with Royal Purple’s proprietary additive technology Synerlec, HMX is chemically enhanced to revitalize hardened seals, reducing oil consumption common in high-mileage engines. In addition, HMX is fortified with stout detergents to remove engine build-up and deposits, maintain cleanliness and promote engine longevity. 

Product Features:
  • Specifically designed to minimize wear and restore lost performance in engines with more than 75,000 miles
  • Formulated with robust zinc/phosphorus anti-wear compounds combined with Royal Purple’s proprietary additive technology
  • HMX is chemically enhanced to revitalize hardened seals, reducing oil consumption common in high-mileage engines
  • Reduces friction and metal-to-metal contact for peak engine performance
  • Also provides outstanding oxidation resistance to safely extend oil drain intervals, and an ionic attraction to metal surfaces, providing protection and minimizing wear at start-up
See More

Valvoline – Daily Protection 5W-20 Synthetic Blend Motor Oil, Easy Pour 5 Quart (Part No.881158)

Daily Protection 5W-20 Synthetic Blend Motor Oil, Easy Pour 5 Quart

from

$29.99
Valvoline Daily Protection Motor Oil is specially formulated to exceed industry standards for wear, deposit and sludge protection to help keep engines running like new. Developed with high quality additives and premium base oils, it’s designed to flow easily at cold temperatures, reducing wear at startup and providing added protection against motor oil breakdown in tough conditions. For enhanced fuel efficiency, choose Daily Protection Synthetic Blend 5W-20 or 5W-30. Developed with low-friction technology to support strong fuel economy.

Product Features:
  • Extra wear protection designed to help keep automotive engine parts like new
  • Added detergents help protect against sludge and deposits
  • High quality additives resist motor oil breakdown in tough conditions
  • Low-friction formula supports strong fuel efficiency
  • Premium formulation flows easily at low temperatures reducing wear at start-up
See More

FRAM – 5 Qt Conventional 5W30 Engine Oil with Low-Speed Pre-Ignition Control (Part No.F620-5QT)

5 Qt Conventional 5W30 Engine Oil with Low-Speed Pre-Ignition Control

from

$25.99
FRAM Engine Oil SAE 5W-30 utilizes a blend of high-quality conventional and synthetic base stocks coupled with a robust additive system to provide reliable engine protection across a broad range of operating conditions. Specifically formulated for use in modern gas-direct engines (GDI) and turbo gas-direct engines (TGDI) as well as older carbureted or normally fuel injected gasoline engine designs. FRAM Engine Oil SAE 5W-30 contains additive technology designed to prevent low-speed pre-ignition (LSPI) while also providing increased wear protection, oxidation and shear stability over previous oil categories. FRAM Engine Oil SAE 5W-30 meets the requirements for API SP, SN Plus, SN, SM and ILSAC GF-6A, GF-5 and earlier API and ILSAC Service Categories.

Product Features:
  • Low-speed pre-ignition control
  • Chain wear protection
  • Piston cleanliness
  • Turbo-compatibility
  • Always refer to your vehicles operating manual to select the correct grade oil for your engine.
  • Reliable engine protection: FRAM Conventional Oil 5W30 5 QT utilizes a blend of high-quality conventional and synthetic base stocks coupled with a robust additive system to provide reliable engine protection across a broad range of operating conditions.
See More

FRAM – Full Synthetic 5W-20 Motor Oil: 1 Quart (Part No.F920)

Full Synthetic 5W-20 Motor Oil: 1 Quart

from

$7.49
FRAM Engine Oil Full Synthetic SAE 5W-20 is a full synthetic motor oil blended with high quality synthetic base stocks and the latest additive technology to meet the stringent API: SP, SN, SM, SL, SJ, GM dexos®1 Gen 2 and ILSAC GF-6A specifications to provide the ultimate protection for your engine. Specifically formulated for the rigorous environment of gas-direct engine (GDI) and turbo gas-direct engine (TGDI) designs as well as providing increased protection for carbureted or normally fuel injected engines. FRAM Engine Oil Full Synthetic SAE 5W-20 contains additive technology designed to prevent low-speed pre-ignition (LSPI). LSPI can lead to pre-mature engine failure and is a major concern of the automotive industry for vehicles employing GDI or TGDI technology. This oil also provides increased wear protection, oxidation and shear stability over previous oil categories. FRAM Engine Oil Full Synthetic SAE 5W-20 and is a fully licensed GM dexos®1 Gen 2 motor oil.

Product Features:
  • Faster oil flow at start-up
  • Fuel efficiency gains over heavier grade oils
  • Excellent sludge and varnish protection
  • Outstanding thermal and oxidation stability
  • Lowers oil vaporization and consumption at extreme conditions
  • ALWAYS REFER TO YOUR VEHICLES OPERATING MANUAL TO SELECT THE CORRECT GRADE OIL FOR YOUR ENGINE.
See More

FRAM – Full Synthetic 5W-30 Dexos1 Gen 3 Engine Oil: 5 Quart (Part No.F930-5QT)

Full Synthetic 5W-30 Dexos1 Gen 3 Engine Oil: 5 Quart

from

$27.99
FRAM Engine Oil Full Synthetic SAE 5W-30 is a full synthetic motor oil blended with high quality synthetic base stocks and the latest additive technology to meet the stringent API: SP, SN, SM, SL, SJ, GM dexos1 Gen 3 and ILSAC GF-6A specifications to provide the ultimate protection for your engine. Specifically formulated for the rigorous environment of gas-direct engine (GDI) and turbo gas-direct engine (TGDI) designs as well as providing increased protection for carbureted or normally fuel injected engines. FRAM Engine Oil Full Synthetic SAE 5W-30 contains additive technology designed to prevent low-speed pre-ignition (LSPI). LSPI can lead to pre-mature engine failure and is a major concern of the automotive industry for vehicles employing GDI or TGDI technology. This oil also provides increased wear protection, oxidation and shear stability over previous oil categories. FRAM Engine Oil Full Synthetic SAE 5W-30 and is a fully licensed GM dexos1 Gen 3 motor oil.

Product Features:
  • Faster oil flow at start-up
  • Fuel efficiency gains over heavier grade oils
  • Excellent sludge and varnish protection
  • Outstanding thermal and oxidation stability
  • Lowers oil vaporization and consumption at extreme conditions
  • Always refer to your vehicles operating manual to select the correct grade oil for your engine.
See More

Mobil 1 – Extended Performance High Mileage Full Synthetic Motor Oil 5W-20, 5 Quart (Part No.15020)

Extended Performance High Mileage Full Synthetic Motor Oil 5W-20, 5 Quart

from

$41.99
You trust your car to keep you going, even after 75,000 miles. Mobil 1 Extended Performance High Mileage full-synthetic motor oil 5W-20 gives engines with over 75,000 miles the extra care they need to go the distance. Formulated to help prevent leaks, it helps to protect critical engine parts for up to 20,000 miles between oil changes, guaranteed.(1) Utilizes Mobil 1’s Triple Action+ Formula to combine outstanding engine performance, protection, and cleanliness with the added benefit of maximized engine power. This cutting-edge formula is recommended by ExxonMobil for all types of modern vehicles, including high-performance, turbo-charged, and supercharged gasoline and diesel multi-valve fuel-injected engines found in passenger cars, SUVs, light vans, and light trucks. Mobil 1 is America’s #1 synthetic motor oil brand at retail,(2) trusted and recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR. ((1)Protects for up to 20,000 miles or 1 year, whichever comes first. To learn more about the Mobil 1 Limited Warranty, visit Mobil.US. (3)Source: The NPD Group/Retail Tracking Service/Dollar Sales/PCMO full-synthetic/52 weeks ending July 1, 2023)

Product Features:
  • Mobil 1 Extended Performance High Mileage full-synthetic motor oil 5W-20 is designed for engines with over 75,000 miles to go up to 20,000 miles between oil changes.(1)
  • Utilizes Mobil 1’s Triple Action+ Formula to combine outstanding engine performance, protection, and cleanliness with the added benefit of power
  • Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy
  • Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -40 degrees F)
  • Helps extend engine life by working to prevent damaging deposits and sludge buildup
  • Manufacturer Part Number: 123840
See More

FRAM – Full Synthetic 10W30 Engine Oil – Helps Extend Engine Life – 1 Qt (Part No.F940)

Full Synthetic 10W30 Engine Oil - Helps Extend Engine Life - 1 Qt

from

$7.49
FRAM Engine Oil Full Synthetic SAE 10W-30 is a full synthetic motor oil blended with high  quality synthetic base stocks and the latest additive technology to provide the ultimate protection  for your engine. Specifically formulated for the rigorous environment of gas-direct engine (GDI)  and turbo gas-direct engine (TGDI) designs as well as providing increased protection for  carbureted or normally fuel injected engines. FRAM Engine Oil Full Synthetic SAE 10W-30  contains additive technology designed to prevent low-speed pre-ignition (LSPI). LSPI can lead  to pre-mature engine failure and is a major concern of the automotive industry for vehicles  employing GDI or TGDI technology. This oil also provides increased wear protection, oxidation  and shear stability over previous oil categories.

Product Features:
  • Outstanding thermal and oxidation stability
  • Excellent sludge and varnish protection
  • Faster oil flow at start-up
  • Volatility: lowers oil vaporization and consumption at extreme conditions
  • Always refer to your vehicles operating manual to select the correct grade oil for your engine.
  • Ultimate engine protection: FRAM Full Synthetic Oil 10W30 1 QT is specifically formulated with high-quality synthetic base stocks and advanced additive technology to provide the ultimate protection for your engine, ensuring its longevity and performance.
See More

FRAM – Full Synthetic 5W-30 dexos 1 Gen 3 Motor Oil: 1 Quart (Part No.F930)

Full Synthetic 5W-30 dexos 1 Gen 3 Motor Oil: 1 Quart

from

$7.49
FRAM Engine Oil Full Synthetic SAE 5W-30 is a full synthetic motor oil blended with high quality synthetic base stocks and the latest additive technology to meet the stringent API: SP, SN, SM, SL, SJ, GM dexos®1 Gen 3 and ILSAC GF-6A specifications to provide the ultimate protection for your engine. Specifically formulated for the rigorous environment of gas-direct engine (GDI) and turbo gas-direct engine (TGDI) designs as well as providing increased protection for carbureted or normally fuel injected engines. FRAM Engine Oil Full Synthetic SAE 5W-30 contains additive technology designed to prevent low-speed pre-ignition (LSPI). LSPI can lead to pre-mature engine failure and is a major concern of the automotive industry for vehicles employing GDI or TGDI technology. This oil also provides increased wear protection, oxidation and shear stability over previous oil categories. FRAM Engine Oil Full Synthetic SAE 5W-30 and is a fully licensed GM dexos®1 Gen 3 motor oil.

Product Features:
  • Faster oil flow at start-up
  • Fuel efficiency gains over heavier grade oils
  • Excellent sludge and varnish protection
  • Outstanding thermal and oxidation stability
  • Lowers oil vaporization and consumption at extreme conditions
  • ALWAYS REFER TO YOUR VEHICLES OPERATING MANUAL TO SELECT THE CORRECT GRADE OIL FOR YOUR ENGINE.
See More

Castrol – GTX Ultraclean 5W-30 Synthetic Blend Motor Oil: 5 Quart (Part No.15A66D)

GTX Ultraclean 5W-30 Synthetic Blend Motor Oil: 5 Quart

from

$29.99
Environmental factors such as poor fuel quality, hot weather and stop-start driving conditions can lead to sludge, varnish and carbon build-up in your engine: three factors that reduce engine life, power and fuel economy. Castrol Ultraclean is a synthetic blend engine oil available in 0W-20, 5W-20 and 5W-30 grades. Its double-action formula has been proven to clean away the sludge that can block engine oilways* and helps prevent new sludge formation thanks to its synthetic technology. In fact, it provides up to 1.4X better sludge protection than is demanded by the latest industry standard. If keeping your engine clean is important to you, it’s good to know that no other oil keeps engines cleaner.

Product Features:
  • 1.4X superior sludge protection compared to tough industry standards (As measured in the Sequence VH Sludge test vs. API SP test limits)
  • Advanced protection against viscosity and thermal breakdown
  • Superior protection against high-temperature deposits
  • Premium-quality base oils and anti-wear additives that help extend the life of your engine
See More

Castrol – GTX High Mileage 5W-30 Synthetic Blend Engine Oil: 5 Quart (Part No.15980E)

GTX High Mileage 5W-30 Synthetic Blend Engine Oil: 5 Quart

from

$30.99
Castrol GTX High Mileage motor oil is the leading consumer high-mileage brand. You won’t need to worry about using a high mileage oil or synthetic because this is both. It’s a synthetic blend engine oil that helps extend the life of your engine by protecting against sludge, wear and burn-off and also liquid engineered to protect your emission system. One of the leading causes of ‘check engine’ lights coming on in high mileage cars is actually catalytic converter failure, which can be caused by phosphorous in engine oil. While phosphorous is present in all engine oils for its ability to reduce wear, it is effectively poisonous to catalytic converters. Castrol GTX High Mileage Motor Oil is liquid engineered with Phosphorous Replacement Technology to replace some of the phosphorous with an advanced additive that maintains robust wear protection. When you want to extend the life of your high mileage engine and emission system and find out how many miles you can go on a high-mileage oil, there is no better choice than Castrol GTX High Mileage Motor Oil.

Product Features:
  • Phosphorus replacement technology to help extend the life of the emission system
  • Superior dispersancy that fights sludge build up
  • Exceptional oil burn-off protection exceeding industry standards (based on api and acea volatility specifications)
  • Improved fuel economy (in 5w-20, 5w-30 and 10w-30 grades versus industry specifications)
  • Provides extra protection for older vehicles: Castrol GTX High Mileage Engine Oil is specifically designed to provide extra protection for high mileage engines, helping to extend the life of your vehicle.
  • Synthetic blend composition: This engine oil is a synthetic blend, combining the benefits of both conventional and synthetic oils to provide superior protection against sludge, wear, and burn-off.
See More

Mobil 1 – High Mileage Full Synthetic Motor Oil 10W-30, 1 Quart (Part No.14992)

High Mileage Full Synthetic Motor Oil 10W-30, 1 Quart

from

$12.49
Give your higher mileage engine the care it deserves with Mobil 1 High Mileage full-synthetic motor oil 0W-20. This formula utilizes Mobil 1’s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness to vehicles with over 75,000 miles. Mobil 1 High Mileage motor oil extends engine life by reducing friction and preventing deposits and sludge buildup, keeping critical engine parts clean and protected for up to 10,000 miles between oil changes. (1) Mobil 1 helps to keep your engine running at lower temperatures (2) and is proven to cool engine temperatures by over 10%. (3) Mobil 1 High Mileage full-synthetic motor oil 10W-30 also helps control oxidation to prevent oil breakdown and is recommended by ExxonMobil for all types of modern cars, SUVs, light vans, and light trucks, including those with high-performance, turbocharged, supercharged, multi-valve, or fuel-injected engines. Mobil 1 is America’s #1 selling synthetic motor oil brand at retail, (4) trusted and recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR«. ( (1) Protects for up to 10,000 miles or 1 year, whichever comes first. To learn more about the Mobil 1 Limited Warranty, visit Mobil.US. (2) Compared to conventional oil. (3) Based on proprietary engine testing┐results may vary. (4) Source: The NPD Group/ Retail Tracking Service/ Dollar Sales/ PCMO full-synthetic/ 52 weeks ending Feb 25, 2023)

Product Features:
  • Mobil 1 High Mileage full-synthetic motor oil 10W-30 is designed for engines with over 75,000 miles to go up to 10,000 miles between oil changes.(1)
  • Utilizes Mobil 1’s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness
  • Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy
  • Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -30 degrees F)
  • Mobil 1 is specially formulated to help remove sludge and lower engine temperatures
  • Manufacturer Part Number: 103535
See More

Castrol – EDGE Extended Performance 5W-20 Advanced Full Synthetic Motor Oil: 5 Qt (Part No.1598EF)

EDGE Extended Performance 5W-20 Advanced Full Synthetic Motor Oil: 5 Qt

from

$41.99
Castrol EDGE Extended Performance with Fluid TITANIUM Technology is Castrol’s most advanced full synthetic and the natural choice for drivers who demand outstanding performance and the assurance of protection during today’s longer drain intervals. It provides protection for 20,000 miles or a full year – guaranteed. Castrol EDGE Extended Performance features some of the best attributes of Castrol’s patented Fluid TITANIUM Technology that transforms its structure to be stronger under pressure. It helps keep metal apart to fight power-robbing friction, providing wear protection 6X better than required by the industry standard, while protecting under extreme conditions with 10X better high temperature performance.  Castrol EDGE Extended Performance provides the strength to extend drains for 20,000 miles and the muscle to maintain viscosity stability under the extreme force of the engine and protection from wear.  Unlock maximum engine performance.

Product Features:
  • Extended drain interval of 20,000 miles or a full year (Whichever comes first)
  • 10X Better High Temperature performance (As measured in Sequence IIIH engine test vs. API SP test limit)
  • 6X Better Wear Protection (As measured in the latest Sequence IVA engine test)
  • 1.4X Better Sludge Protection (As measured in Sequence VH engine test vs. API SP test limit)
See More

Castrol – GTX Ultraclean Synthetic Blend 5W-30 Motor Oil: No Oil Keeps Engines Cleaner, 1 Quart (Part No.15A66C)

GTX Ultraclean Synthetic Blend 5W-30 Motor Oil: No Oil Keeps Engines Cleaner, 1 Quart

from

$9.99
Castrol® Ultraclean synthetic blend engine oil is our cleanest GTX ever. Environmental factors such as poor fuel quality, hot weather and stop-start driving conditions can lead to the buildup of sludge that can reduce engine life, power and fuel economy. Castrol Ultraclean has a double-action formula proven to clean away the sludge that can block engine oilways and helps prevent new sludge formation from occurring. In fact, it provides up to 1.4X better sludge protection than is demanded by the latest industry standard (as measured in the Sequence VH Sludge test vs. API SP test limits). No other oil keeps engines cleaner.

Product Features:
  • Premium-quality base oils and anti-wear additives that help extend the life of your engine
  • 1.4X superior sludge protection compared to tough industry standards, as measured in the Sequence VH Sludge test vs. API SP test limits
  • Advanced protection against viscosity and thermal breakdown
  • Superior protection against high-temperature deposits
  • Meets or exceeds API SP/SN PLUS/SN, ILSAC GF-6 and latest Ford specs
See More

Castrol – GTX 10W-30 Conventional Motor Oil: 5 Quart (Part No.15B7AA)

GTX 10W-30 Conventional Motor Oil: 5 Quart

from

$29.99
Sludge can block your engine’s vital oilways like cholesterol and if untreated, can rob an engine of its power and ultimately its life. Castrol GTX is a premium conventional motor oil that has been helping to extend engine life for over 50 years. It has evolved to meet the needs of consumers and vehicle manufacturers since 1968 and continues to innovate and remain a trusted brand today. Severe driving conditions such as heavy traffic, poor fuel quality, harsh driving conditions and exceeding oil change intervals can all cause the build-up of a thick, tar like substance called sludge. If untreated, it can rob a car’s engine of its power and ultimately its life. GTX is specially engineered to prevent harmful build-up of sludge while protecting against new oil splatter formation better than tough industry standards. Help Extend the Life of Your Engine with Castrol GTX.

Product Features:
  • Superior protection against engine sludge (When tested in engines with a high level of sludge)
  • Advanced protection against viscosity and thermal breakdown
  • Premium quality base oils and anti-wear additives to help extend the life of your engine
  • Helps minimize oil consumption
See More

Mobil 1 – Extended Performance Full Synthetic Motor Oil 10W-30, 1 Quart (Part No.14978)

Extended Performance Full Synthetic Motor Oil 10W-30, 1 Quart

from

$12.99
If you trust your vehicle to be there for you, you need to be there for its engine, with Mobil 1 Extended Performance full-synthetic motor oil 10W-30. Our ultimate full-synthetic motor oil meets or exceeds the industry’s toughest standards to help you get the most from your engine for up to 20,000 miles between oil changes, guaranteed.(1) Mobil 1 Extended Performance utilizes Mobil 1’s Triple Action+ Formula to combine outstanding engine performance, protection, and cleanliness with the added benefit of maximized engine power. This cutting-edge formula is recommended by ExxonMobil for all types of modern vehicles, including high-performance, turbo-charged, and supercharged gasoline and diesel multi-valve fuel-injected engines found in passenger cars, SUVs, light vans, and light trucks. Mobil 1 is America’s #1 synthetic motor oil brand at retail,(2) trusted and recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR«. ((1)Protects for up to 20,000 miles or 1 year, whichever comes first. To learn more about the Mobil 1 Limited Warranty, visit Mobil.US. (2)Source: The NPD Group/ Retail Tracking Service/ Dollar Sales/ PCMO full-synthetic/ 52 weeks ending Feb 25, 2023)

Product Features:
  • Mobil 1 High Mileage full-synthetic motor oil 10W-30 is designed for engines with over 75,000 miles to go up to 10,000 miles between oil changes.(1)
  • Utilizes Mobil 1’s Triple Action+ Formula to combine outstanding engine performance, protection, and cleanliness with the added benefit of power
  • Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy
  • Helps extend engine life by working to prevent damaging deposits and sludge buildup
  • Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -40 degrees F)
  • Manufacturer Part Number: 102990
See More

Castrol – GTX Ultraclean 5W-20 Synthetic Blend Motor Oil: 5 Quart (Part No.15A69C)

GTX Ultraclean 5W-20 Synthetic Blend Motor Oil: 5 Quart

from

$29.99
Environmental factors such as poor fuel quality, hot weather and stop-start driving conditions can lead to sludge, varnish and carbon build-up in your engine: three factors that reduce engine life, power and fuel economy. Castrol Ultraclean is a synthetic blend engine oil available in 0W-20, 5W-20 and 5W-30 grades. Its double-action formula has been proven to clean away the sludge that can block engine oilways and helps prevent new sludge formation thanks to its synthetic technology. In fact, it provides up to 1.4X better sludge protection than is demanded by the latest industry standard. If keeping your engine clean is important to you, it’s good to know that no other oil keeps engines cleaner.

Product Features:
  • 1.4X superior sludge protection compared to tough industry standards (As measured in the Sequence VH Sludge test vs. API SP test limits)
  • Advanced protection against viscosity and thermal breakdown
  • Superior protection against high-temperature deposits
  • Premium-quality base oils and anti-wear additives that help extend the life of your engine
See More

1999 Mercury Grand Marquis Motor Oil

Maybe you’re in the middle of a full rebuild of that 1999 Mercury Grand Marquis. Maybe you just need a couple of Motor Oil. Either way, Advance Auto Parts has 19 different Motor Oil in our inventory ranging from $6.49 to $41.99. That means you can find the exact parts or products you need to keep that 1999 Mercury Grand Marquis running smoothly.

Motor Oil are only as good as their brand. We stock 3 different brands to make sure you have plenty of trusted parts to choose from for your 1999 Mercury Grand Marquis. Castrol, FRAM, and Valvoline are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Motor Oil for your 1999 Mercury Grand Marquis, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 1,338 reviews in this category, some of the top rated parts include Daily Protection 5W-20 Synthetic Blend Motor Oil, Easy Pour 5 Quart with 4.8 stars.

So if you’re in the market for aftermarket Motor Oil to keep your 1999 Mercury Grand Marquis rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Motor Oil Brands To Make Your 1999 Mercury Grand Marquis Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1999 Mercury Grand Marquis demands trusted brand parts and products to keep it running. Many trusted brands of Motor Oil make up Advance Auto Parts’ inventory, and all are ready to help make your Grand Marquis the best it can be. Be sure to browse some of our top Motor Oil brands and parts.

FAQs for 1999 Mercury Grand Marquis Motor Oil

What are the most purchased Motor Oil for the 1999 Mercury Grand Marquis?

Out of 19 Motor Oil for the 1999 Mercury Grand Marquis, the most popular in our inventory are:
Full Synthetic 5W-20 Motor Oil: 5 Quart
from $27.99
This product is not rated
Full Synthetic 5W-20 Motor Oil: 5 Quart
Engine Oil
EDGE High Mileage 5W-20 Advanced Full Synthetic Engine Oil: 5 Quart
from $38.99
This product is not rated
EDGE High Mileage 5W-20 Advanced Full Synthetic Engine Oil: 5 Quart
Engine Oil
High Mileage 5W-20 Motor Oil: 5 Quart
from $25.99
This product is not rated
High Mileage 5W-20 Motor Oil: 5 Quart
Engine Oil

What are the top-rated 1999 Mercury Grand Marquis Motor Oil?

Top-rated Motor Oil for your 1999 Mercury Grand Marquis based on customer reviews/ratings are: