1986 GMC C2500 Engine Oils

Castrol GTX High Mileage 10W-30 is the No. 1 consumer high-mileage brand of motor oil. It’s a synthetic blend engine oil that helps extend the life of engines by protecting against sludge, wear and burn-off. Engineered with Phosphorous Replacement Technology, it also protects emission systems by replacing some of the phosphorous that can damage catalytic converters.

Product Features:

• Phosphorus Replacement Technology helps extend emission system life
• Superior dispersancy that fights sludge build up
• Exceptional oil burn-off protection exceeding industry standards (1)
• Seal conditioners to help reduce leaks
• Advanced additives that minimize engine wear
• Improved fuel economy (2)
• (1) Based on API and ACEA volatility specifications
• ILSAC GF-6
• (2) In 5W-20, 5W-30 and 10W-30 grades versus industry specifications
• API SP/SN PLUS/SN/SM
• ILSAC GF-6

Castrol GTX 10W-30 is a premium conventional motor oil that has been helping to extend engine life for over 50 years. It is specially engineered to prevent harmful build-up of sludge while protecting against new oil splatter formation better than tough industry standards. Sludge is a thick, tar like substance caused by severe driving conditions such as heavy traffic, poor fuel quality, harsh driving conditions and exceeding oil change intervals. Sludge can block your engine’s vital oilways like cholesterol and if untreated, can rob an engine of its power and ultimately its life.

Product Features:

• Advanced protection against viscosity and thermal breakdown
• Superior protection against engine sludge
• Premium quality base oils and anti-wear additives to help extend the life of your engine
• Helps minimize oil consumption
• Meets or exceeds the following specifications:
• API SP/SN PLUS/SN/SM
• ILSAC GF-6
• Meets Ford WSS-M2C961-A1

75,000 miles is more than a mile marker. It’s a signal that your engine is ready for greater protection. That’s when you need Valvoline High Mileage with MaxLife Technology Motor Oil. Its exclusive formula is proven to maximize engine life in cars, trucks, and SUVs with over 75,000 miles. Our mixture is specially developed with a unique combination of synthetic and premium conventional oils to protect your high-mileage motor against wear, friction, heat, and deposits – the four major causes of engine breakdown and expensive repairs. Anti-wear additives defend critical engine components, advanced friction-fighting agents reduce heat and abrasion, added detergents clean the inside of your engine, and premium seal conditioners handle aging seals to prevent leaks. It fights sludge, corrosion and rust that can rob your engine of horsepower, fuel efficiency and longevity. From extreme temperatures and cold starts to stop-and-go traffic and frequent short trips, viscosity modifiers make sure the oil flows more easily, coats more completely, and resists thermal breakdown under even the most intense driving conditions. Its unique mixture curbs contaminants to keep high-mileage engines from burning and consuming oil that can foul spark plugs, creating higher emissions and causing your motor to run roughly.

Product Features:

• Maxlife technology prevents engine breakdown with 40% better wear protection than the industry standard
• Refresh aging seals and prevent leaks with seal conditioners
• Reduce sludge, deposits, corrosion, and rust with added detergents – keep motors clean inside
• Enhanced friction performance helps maximize power with advanced friction-fighting agents
• Meets or exceeds all requirements of ilsac gf-6a, api sp, api sn with sn plus, api sn
• MaxLife Technology: The exclusive formula of Valvoline High Mileage with MaxLife Technology Engine Oil is proven to maximize engine life in cars, trucks, and SUVs with over 75,000 miles.

Castrol GTX 10W-30 is a premium conventional motor oil that has been helping to extend engine life for over 50 years. It is specially engineered to prevent harmful build-up of sludge while protecting against new oil splatter formation better than tough industry standards. Sludge is a thick, tar like substance caused by severe driving conditions such as heavy traffic, poor fuel quality, harsh driving conditions and exceeding oil change intervals. Sludge can block your engine’s vital oilways like cholesterol and if untreated, can rob an engine of its power and ultimately its life.

Product Features:

• Advanced protection against viscosity and thermal breakdown
• Superior protection against engine sludge
• Premium quality base oils and anti-wear additives to help extend the life of your engine
• Helps minimize oil consumption
• Meets or exceeds the following specifications:
• API SP/SN PLUS/SN/SM
• ILSAC GF-6
• Meets Ford WSS-M2C960-A1

Castrol GTX High Mileage 10W-30 is the No. 1 consumer high-mileage brand of motor oil. It’s a synthetic blend engine oil that helps extend the life of engines by protecting against sludge, wear and burn-off. Engineered with Phosphorous Replacement Technology, it also protects emission systems by replacing some of the phosphorous that can damage catalytic converters.

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 (1)
• Seal conditioners to help reduce leaks
• Advanced additives that minimize engine wear
• Improved fuel economy (2)
• (1) Based on API and ACEA volatility specifications
• Meets or exceeds the following specifications:
• (2) In 5W-20, 5W-30 and 10W-30 grades versus industry specifications
• Meets or exceeds the following specifications:
• API SP/SN PLUS/SM
• ILSAC GF-6

Castrol EDGE 10W-30 is an advanced full synthetic motor oil and the optimal choice for drivers who want the best combination of wear protection, viscosity control and thermal stability to maximize engine performance. It is one of Castrols strongest engine oils with the strength to maintain this unsurpassed level of engine protection for up to 20,000 miles between oil changes or one year.

Product Features:

• 3X Stronger than the leading full synthetic (1)
• 10X Better high stress performance (2)
• 20,000 miles between oil changes (3)
• (1) Viscosity breakdown as measured in Kurt Orbahn test on 5W-30 grade
• (2) As measured in Seq IX test under high load/torque conditions vs. API SP test limits
• (3) Or one year, whichever comes first
• Approved and Licensed Specifications:
• Exceeds API SP/SN PLUS/SN/SM

Castrol EDGE 10W-30 is an advanced full synthetic motor oil and the optimal choice for drivers who want the best combination of wear protection, viscosity control and thermal stability to maximize engine performance. It is one of Castrols strongest engine oils with the strength to maintain this unsurpassed level of engine protection for up to 20,000 miles between oil changes or one year.

Product Features:

• 3X Stronger than the leading full synthetic (1)
• 10X Better high stress performance (2)
• 20,000 miles between oil changes (3)
• (1) Viscosity breakdown as measured in Kurt Orbahn test on 5W-30 grade
• (2) As measured in Seq IX test under high load/torque conditions vs. API SP test limits
• (3) Or one year, whichever comes first
• Approved and Licensed Specifications:
• Exceeds API SP/SN PLUS/SN/SM
• ILSAC GF-6

Castrol EDGE High Mileage 10W-30 is an advanced full synthetic motor oil that is specifically designed for vehicles with over 75,000 miles. It’s been engineered to reduce leaks, burnoff and power robbing deposits, but also contains a proprietary additive to protect the emission system. Our Phosphorus Replacement Technology reduces harmful phosphorus to protect the catalytic converter and extend maximum performance. It is the natural choice for drivers who demand maximum performance from their high mileage car.

Product Features:

• Phosphorus Replacement Technology to help extend the life of the emission system
• Reduces leaks, oil burnoff and power robbing deposits
• 15,000 miles between oil changes (1)
• (1) Or one year, whichever comes first
• Meets or exceeds the following specifications:
• API SP/SN PLUS/SN/SM
• ILSAC GF-6

75,000 miles is more than a mile marker. It’s a signal that your engine is ready for greater protection. That’s when you need Valvoline High Mileage with MaxLife Technology Motor Oil. Its exclusive formula is proven to maximize engine life in cars, trucks, and SUVs with over 75,000 miles. Our mixture is specially developed with a unique combination of synthetic and premium conventional oils to protect your high-mileage motor against wear, friction, heat, and deposits – the four major causes of engine breakdown and expensive repairs. Anti-wear additives defend critical engine components, advanced friction-fighting agents reduce heat and abrasion, added detergents clean the inside of your engine, and premium seal conditioners handle aging seals to prevent leaks. It fights sludge, corrosion and rust that can rob your engine of horsepower, fuel efficiency and longevity. From extreme temperatures and cold starts to stop-and-go traffic and frequent short trips, viscosity modifiers make sure the oil flows more easily, coats more completely, and resists thermal breakdown under even the most intense driving conditions. Its unique mixture curbs contaminants to keep high-mileage engines from burning and consuming oil that can foul spark plugs, creating higher emissions and causing your motor to run roughly.

Product Features:

• MAXLIFE TECHNOLOGY PREVENTS engine breakdown with 40% better wear protection than the industry standard
• REFRESH AGING SEALS AND PREVENT LEAKS with seal conditioners
• REDUCE SLUDGE, DEPOSITS, CORROSION, AND RUST with added detergents – keep motors clean inside
• ENHANCED FRICTION PERFORMANCE HELPS MAXIMIZE POWER with advanced friction-fighting agents
• MEETS OR EXCEEDS ALL REQUIREMENTS of ILSAC GF-6A, API SP, API SN with SN PLUS, API SN
• MaxLife Technology: Valvoline High Mileage with MaxLife Technology is specially formulated to maximize engine life in vehicles with over 75,000 miles, providing superior protection against wear, friction, heat, and deposits.
• Synthetic Blend Composition: This motor oil features a unique combination of synthetic and premium conventional oils, ensuring optimal performance and protection for high-mileage engines.

Castrol EDGE High Mileage 10W-30 is an advanced full synthetic motor oil that is specifically designed for vehicles with over 75,000 miles. It’s been engineered to reduce leaks, burnoff and power robbing deposits, but also contains a proprietary additive to protect the emission system. Our Phosphorus Replacement Technology reduces harmful phosphorus to protect the catalytic converter and extend maximum performance. It is the natural choice for drivers who demand maximum performance from their high mileage car.

Product Features:

• Phosphorus Replacement Technology to help extend the life of the emission system
• Reduces leaks, oil burnoff and power robbing deposits
• 15,000 miles between oil changes (1)
• (1) Or one year, whichever comes first
• Meets or exceeds the following specifications:
• API SP/SN PLUS/SN/SM
• ILSAC GF-6

FRAM Engine Oil SAE 10W-30 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 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 10W-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.
• Suitable for modern engines: 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-30 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 10W-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 10W-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.
• Versatile Compatibility: 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.
• High-Quality Conventional Base Stocks: Utilizes a blend of high-quality conventional base stocks to ensure reliable engine protection across a broad range of operating conditions.
• Meets Stringent Standards: Complies with API SP, SN Plus, SN, SM, and ILSAC GF-6A, GF-5, and earlier API and ILSAC Service Categories, ensuring it meets the latest industry requirements.
• SAE oil weight of 10W-30, making it a dependable choice for various engine types.

FRAM Heavy Duty 15W-40 Diesel Oil is premium high performance diesel engine oil utilizing the latest in engine oil additive technology to offer the ultimate protection of your engine. Designed to meet or exceed the latest OEM and API CK-4 requirements, it is also backwards compatible to previous OEM and API specifications such as CJ-4, CI-4, CI-4+, and CH-4. STP 15W-40 Diesel Oil carries the API SN classification for use in gasoline engines and is an excellent choice for operators with mixed fleets. The FRAM HD 15W-40 diesel oil is specially designed to protect EGR/Low-Emission Diesel Engines while maximizing the durability of Diesel Particulate Filters (DPF’s).

Product Features:

• High soot handling
• Improved sludge control
• Excellent component protection for corrosion and wear
• Superior oxidation stability
• Shear stable formulation
• One oil for mixed Fleets
• Exceptional oil consumption control.
• ALWAYS REFER TO YOUR VEHICLES OPERATING MANUAL TO SELECT THE CORRECT GRADE OIL FOR YOUR ENGINE.

FRAM Full Synthetic High Mileage SAE 10W-30 is a full synthetic motor oil blended with high quality synthetic base stocks and and enhanced additives that meet the stringent API: SP, SN, SM, SL, SJ, and ILSAC GF-6A specifications while reducing leaks and oil consumption in worn or higher mileage engines. Formulated with synthetic base stocks, this oil offers increased oxidation inhibition performance as well as increased high and low temperature performance when compared against conventional oils. The FRAM Full Synthetic High Mileage SAE 10W-30 is formulated to help clean out sludge buildup and keep engines running clean and with increased efficiency and power. Specially designed for engines with over 75,000 miles, the FRAM Full Synthetic High Mileage SAE 10W-30 provides the ultimate protection for your higher mileage 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 Full Synthetic High Mileage 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 for higher mileage vehicles over previous oil categories.

Product Features:

• Faster oil flow at start-up
• Fuel efficiency gains over heavier grade oils
• Reduces oil cumsumption
• Excellent sludge and varnish protection
• Slows engine leaks
• 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.
• Engine Cleaning and Efficiency: Helps clean out sludge buildup, keeping engines running clean with increased efficiency and power, ideal for engines with over 75,000 miles.
• Advanced LSPI Prevention: Contains additive technology designed to prevent low-speed pre-ignition (LSPI), a major concern for vehicles with gas-direct engine (GDI) and turbo gas-direct engine (TGDI) designs.
• Comprehensive Engine Protection: Provides increased wear protection, oxidation, and shear stability for higher mileage vehicles, meeting stringent API: SP, SN, SM, SL, SJ, and ILSAC GF-6A specifications.

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 Engine Oil Full Synthetic SAE 10W-30 is formulated with high-quality synthetic base stocks and the latest additive technology to provide the ultimate protection for your engine.
• Advanced LSPI Prevention: Contains additive technology specifically designed to prevent low-speed pre-ignition (LSPI), a major concern for vehicles with gas-direct injection (GDI) and turbo gas-direct injection (TGDI) engines.
• Enhanced Wear Protection: Offers increased wear protection, ensuring your engine components remain in optimal condition even under rigorous driving conditions.
• Versatile Engine Compatibility: Suitable for a wide range of engines, including GDI, TGDI, carbureted, and normally fuel-injected engines, making it a versatile choice for various vehicle types.

10W-30 Small Engine 10W-30 Conventional Oil: 1 Quart

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.

FRAM Heavy Duty 15W-40 Diesel Oil is premium high performance diesel engine oil utilizing the latest in engine oil additive technology to offer the ultimate protection of your engine. Designed to meet or exceed the latest OEM and API CK-4 requirements, it is also backwards compatible to previous OEM and API specifications such as CJ-4, CI-4, CI-4+, and CH-4. STP 15W-40 Diesel Oil carries the API SN classification for use in gasoline engines and is an excellent choice for operators with mixed fleets. The FRAM HD 15W-40 diesel oil is specially designed to protect EGR/Low-Emission Diesel Engines while maximizing the durability of Diesel Particulate Filters (DPF’s).

Product Features:

• High soot handling
• Improved sludge control
• Excellent component protection for corrosion and wear
• Superior oxidation stability
• Shear stable formulation
• One oil for mixed Fleets
• Exceptional oil consumption control

FRAM Heavy Duty 15W-40 Diesel Oil is premium high performance diesel engine oil utilizing the latest in engine oil additive technology to offer the ultimate protection of your engine. Designed to meet or exceed the latest OEM and API CK-4 requirements, it is also backwards compatible to previous OEM and API specifications such as CJ-4, CI-4, CI-4+, and CH-4. STP 15W-40 Diesel Oil carries the API SN classification for use in gasoline engines and is an excellent choice for operators with mixed fleets. The FRAM HD 15W-40 diesel oil is specially designed to protect EGR/Low-Emission Diesel Engines while maximizing the durability of Diesel Particulate Filters (DPF’s).

Product Features:

• High soot handling
• Improved sludge control
• Excellent component protection for corrosion and wear
• Superior oxidation stability
• Shear stable formulation
• One oil for mixed Fleets
• Exceptional oil consumption control

FRAM Heavy Duty Synthetic Blend 15W-40 utilizes a blend of high-quality conventional and  synthetic base stocks coupled with the latest in engine oil additive technology to offer the ultimate  protection of your engine. Designed to meet or exceed the latest OEM and API CK-4  requirements, it is also backwards compatible to previous OEM and API specifications such as  CJ-4, CI-4, CI-4+, and CH-4. FRAM Heavy Duty Synthetic Blend 15W-40 carries the API SN  classification for use in gasoline engines and is an excellent choice for operators with mixed fleets. This oil is specially designed to protect EGR/Low-Emission Diesel Engines while maximizing the  durability of Diesel Particulate Filters (DPF’s).

Product Features:

• High soot handling. Improved sludge control.
• Excellent protection for metal components from rust, corrosion and wear.
• Superior oxidation stability.
• Shear stable formulation.
• One oil for mixed Fleets.
• Exceptional oil consumption control.
• Lasting TBN retention.
• ALWAYS REFER TO YOUR VEHICLES OPERATING MANUAL TO SELECT THE CORRECT GRADE OIL FOR YOUR ENGINE.

FRAM Full Synthetic High Mileage SAE 10W-30 is a full synthetic motor oil blended with high quality synthetic base stocks and and enhanced additives that meet the stringent API: SP, SN, SM, SL, SJ, and ILSAC GF-6A specifications while reducing leaks and oil consumption in worn or higher mileage engines. Formulated with synthetic base stocks, this oil offers increased oxidation inhibition performance as well as increased high and low temperature performance when compared against conventional oils. The FRAM Full Synthetic High Mileage SAE 10W-30 is formulated to help clean out sludge buildup and keep engines running clean and with increased efficiency and power. Specially designed for engines with over 75,000 miles, the FRAM Full Synthetic High Mileage SAE 10W-30 provides the ultimate protection for your higher mileage 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 Full Synthetic High Mileage 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 for higher mileage vehicles over previous oil categories.

Product Features:

• Faster oil flow at start-up
• Fuel efficiency gains over heavier grade oils
• Reduces oil cumsumption
• Excellent sludge and varnish protection
• Slows engine leaks
• 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.

Castrol VECTON 15W-40 CK-4 with unique SYSTEM PRO TECHNOLOGY is an advanced part-synthetic heavy-duty engine oil. Conforming to the requirements of the latest engine oil specifications, it can be used in diesel engines where API CK-4 or CJ-4 and below is required. This oil is specifically engineered to deliver longer oil life, which can enable longer service intervals even under severe operating conditions.

Product Features:

• Delivers a 45% extra performance reserve. that fights oil breakdown by helping to control oxidation, reduce deposits and neutralize harmful acids
• Adapts to higher temperatures, which helps to maintain viscosity
• Longer useful oil life, giving you confidence in your maximum drain interval.
• Certified CO2-neutral according to the internationally applicable PAS 2060 standard
• API CK-4, JASO DH-2, CAT ECF-3, Cummins CES 20086, DDC DFS 93K222, Deutz DQC III-10 LA, Ford WSS-M2C171-F1, Mack EOS-4.5, RVI RLD-4, Volvo VDS-4.5
• Average of percentages by which VECTON exceeds the industry standard requirement limits in API CK-4 and ACEA E9-16 engine tests for viscosity maintenance, heat protection, deposit control, minimum oil limits and acid neutralization. In API CK-4 tests only
• Extending oil drain intervals should only be done in conjunction with a comprehensive used oil analysis program like Castrol Labcheck