1998 Isuzu Trooper Engine Oil

Your 1998 Isuzu Trooper might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Engine Oil you desperately need.

We currently carry 64 Engine Oil to choose from for your 1998 Isuzu Trooper, and our inventory prices range from as little as $5.89 up to $66.99.

On top of low prices, Advance Auto Parts offers 9 different trusted brands of Engine Oil for the 1998 Isuzu Trooper. We only sell parts from trusted brands like Castrol so that you can find quality parts you can count on.

Don’t take our word for it – check out customer ratings and reviews to buy with confidence. We have 8,110 reviews on our Engine Oil for the 1998 Isuzu Trooper from previous customers.

Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Engine Oil stock in-person!

Engine Oil for Your 1998 Isuzu Trooper

Mobil 1 – High Mileage Full Synthetic 5W-30 Motor Oil, Protection for 10K miles, 5 Quart (Part No.120769)

High Mileage Full Synthetic 5W-30 Motor Oil, Protection for 10K miles, 5 Quart

from

$38.99
Give your higher mileage engine the care it deserves with Mobil 1 High Mileage full-synthetic motor oil 0W-20. This formula utilizes Mobil 1s 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 5W-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 Americas#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 July 1, 2023)

Product Features:
  • Mobil 1 High Mileage full-synthetic motor oil 5W-30 is designed for engines with over 75,000 miles to go up to 10,000 miles between oil changes.(1)
  • Utilizes Mobil 1s 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: 120769
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Mobil 1 – Extended Performance High Mileage Full Synthetic Motor Oil 5W-30, 5 Quart (Part No.15021)

Extended Performance High Mileage Full Synthetic Motor Oil 5W-30, 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-30 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. (2)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-30 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: 123843
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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.
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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.
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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 5W-30 Advanced Full Synthetic Engine Oil: 5 Quart (Part No.1598B1)

EDGE 5W-30 Advanced Full Synthetic Engine Oil: 5 Quart

from

$37.99
Castrol EDGE with Fluid TITANIUM Technology is Castrol’s strongest oil and the natural choice for drivers who want the best combination of sludge protection, wear protection and maximum engine performance. Unlock maximum performance with every drive. Today’s engines are smaller, more powerful and under more pressure than ever before. Castrol EDGE has been engineered to withstand the stress of modern engines and provides 10X better high temperature performance than the latest industry standard. Did you know that friction can waste up to 10% of an engine’s performance? Increased demands placed on the engine to deliver power and fuel efficiency create intense friction between critical engine parts. Castrol EDGE transforms its structure under pressure to keep metal apart and reduce friction for maximum engine performance and delivers 6X better wear protection than required by the latest Sequence IVA test limits.

Product Features:
  • 3x stronger against viscosity breakdown than leading full synthetic (based on kurt orbahn test in 5W-30 grade)
  • 10x better high temperature performance (as measured in sequence iiih engine test vs. api sp test limit)
  • 6x better wear protection
  • 1.4x better sludge protection (as measured in sequence vh engine test vs. api sp test limit)
  • Full Synthetic Oil Composition: Castrol EDGE w/SPT Engine Oil is a full synthetic oil that contains new powerful dispersant molecules, providing superior engine protection and performance.
  • Strongest Oil: Castrol EDGE with Fluid TITANIUM Technology is Castrol’s strongest oil, providing the best combination of sludge protection, wear protection, and maximum engine performance.
See More

Castrol – GTX High Mileage 10W-30 Synthetic Blend Motor Oil: 5 Quart (Part No.1597B0)

GTX High Mileage 10W-30 Synthetic Blend Motor 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)
See More

Mobil 1 – Extended Performance Full Synthetic Motor Oil 5W-30, 1 Quart (Part No.14976)

Extended Performance Full Synthetic Motor Oil 5W-30, 1 Quart

from

$12.99
Product Features:
  • Mobil 1 Extended Performance full-synthetic motor oil 5W-30 helps protect critical engine parts for up to 20,000 miles between oil changes,(1) controlling oxidation to prevent oil breakdown and maintaining excellent viscosity
  • 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: 112627
See More

Castrol – EDGE 5W-30 Advanced Full Synthetic Motor Oil: 1 Quart (Part No.152C3C)

EDGE 5W-30 Advanced Full Synthetic Motor Oil: 1 Quart

from

$11.99
Castrol EDGE with Fluid TITANIUM Technology is Castrol’s strongest oil and the natural choice for drivers who want the best combination of sludge protection, wear protection and maximum engine performance. Unlock maximum performance with every drive. Today’s engines are smaller, more powerful and under more pressure than ever before. Castrol EDGE has been engineered to withstand the stress of modern engines and provides 10X better high temperature performance than the latest industry standard. Did you know that friction can waste up to 10% of an engine’s performance? Increased demands placed on the engine to deliver power and fuel efficiency create intense friction between critical engine parts. Castrol EDGE transforms its structure under pressure to keep metal apart and reduce friction for maximum engine performance and delivers 6X better wear protection than required by the latest Sequence IVA test limits.

Product Features:
  • 3X Stronger against viscosity breakdown than leading full synthetic (Based on Kurt Orbahn test in 5W-30 grade)
  • 10X Better High Temperature performance (As measured in Sequence IIIH engine test vs. API SP test limit)
  • 6X Better Wear Protection
  • 1.4X Better Sludge Protection (As measured in Sequence VH engine test vs. API SP test limit)
See More

Castrol – EDGE High Mileage 5W-30 Full Synthetic Engine Oil 1 Quart (Part No.15979F)

EDGE High Mileage 5W-30 Full Synthetic Engine Oil 1 Quart

from

$12.99
CASTROL EDGE High Mileage 5W-30 Full Synthetic Motor Oil 1 Quart is the perfect choice for vehicles with over 75K miles. It is formulated with Fluid Titanium Technology that provides 10X better high-temperature performance and 6X better wear protection. The oil is designed with Phosphorus Replacement Technology that preserves the catalytic converter and the emission system. It meets API SP/SN PLUS, ILSAC GF-6, GM dexos1 Gen 2, and other OEM specifications. Castrol EDGE High Mileage is a full synthetic motor oil that offers superior performance and protection for high mileage engines. It is available in different grades, including 5W-20, 5W-30, and 10W-30. Try Castrol EDGE High Mileage today and extend the life of your engine.

Product Features:
  • 10x better high temperature performance – as measured in seq iiih engine test vs. api sp limit
  • 6x better wear protection – as measured in seq iva test vs. latest test limit
  • From the makers of the No. 1 high mileage brand
  • Meets api sp/sn plus, ilsac gf-6, gm dexos1 gen 2, meets ford wss-m2c961-a1 and wss-m2c946-b1, meets engine test requirements of chrysler ms 6395 and 13340
  • Castrol edge offers engine 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 – 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

Valvoline – Full Synthetic High Mileage with MaxLife Technology 5W-30 Engine Oil: Maximizes Engine Life, 1 Quart (Part No.VV179)

Full Synthetic High Mileage with MaxLife Technology 5W-30 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
  • Extends engine life: MaxLife High Mileage Full Synthetic Oil is designed to extend the life of higher mileage vehicles, providing superior protection against wear, friction, heat, and deposits – the leading causes of engine breakdown and expensive repairs
See More

Castrol – GTX High Mileage Synthetic Blend 5W-30 Engine Oil: Helps Protect Emission Systems, 1 Quart (Part No.149D6A)

GTX High Mileage Synthetic Blend 5W-30 Engine Oil: Helps Protect Emission Systems, 1 Quart

from

$10.49
Castrol GTX High Mileage motor oil is the leading consumer high-mileage brand. It’s a synthetic blend motor oil that helps extend the life of your engine by protecting against sludge, wear and burn-off. Castrol GTX High Mileage is also engineered to protect your emission system. One of the leading causes of ‘check engine’ lights coming on in high mileage cars is 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 is formulated 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, there is no better choice than Castrol GTX High Mileage.

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)
  • Seal conditioners to help reduce leaks
  • Advanced additives that minimize engine wear
  • Improved fuel economy (in 5w-20, 5w-30 and 10w-30 grades versus industry specifications)
  • 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

Castrol – EDGE® Euro Car 5W-30 A3/B4 Full Synthetic Motor Oil 1 Quart (Part No.15484E)

EDGE® Euro Car 5W-30 A3/B4 Full Synthetic Motor Oil 1 Quart

from

$12.49
Castrol EDGE Euro Car 5W-30 A3/B4 Full-Synthetic Motor Oil transforms under pressure increasing film strength to prevent oil breakdown and reduce friction to unlock maximum performance. Formulated for latest technology, high output engines that operate at extreme temperatures this fluid covers European OEM gasoline specifications for BMW, Mercedes-Benz, Porsche and VW/Audi.

Product Features:
  • Optimized to deliver 40% better performance than required by ACEA standards
  • Recommended by world leading auto manufacturers
  • Engine protection for the entire drain interval even under extreme pressure of high output engines
  • Meets API CF/SL, ACEA A3/B4, BMW LL 01, Meets Ford WSS-M2C937-A, MB Approval 229.3/229.5, Porsche A40, VW 502 00/505 00
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Castrol – EDGE Euro Car 5W-30 C3 Full Synthetic Engine Oil 1 Quart (Part No.154BC4)

EDGE Euro Car 5W-30 C3 Full Synthetic Engine Oil 1 Quart

from

$12.49
CASTROL EDGE Euro Car 5W-30 C3 Full Synthetic Motor Oil is a high-performance engine oil that is designed to provide superior protection to the latest technology, high output engines that operate at extreme temperatures. This full-synthetic motor oil is formulated to transform under pressure, increasing film strength to prevent oil breakdown and reduce friction to unlock maximum performance. It is optimized to deliver 40% better performance than other motor oils and is recommended by world-leading auto manufacturers. This motor oil provides engine protection for the entire drain interval and meets API CF/SN, ACEA A3/B4, ACEA C3, GM dexos2 specifications. It is suitable for European OEM diesel specifications for Mercedes-Benz and VW/Audi. This motor oil was formerly known as Castrol SLX and is available in a 1-quart container.

Product Features:
  • Optimized to deliver 40% better performance than required by acea standards
  • Recommended by world leading auto manufacturers
  • Engine protection for the entire drain interval even under extreme pressure of high output engines
  • Meets api cf/sn, acea a3/b4, acea c3, gm dexos2, mb approval 229.31/229.51, vw 505 00/505 01, renault rn 0700/0710
  • Formerly known as castrol slx
  • Syntec Power Technology: The reformulated EDGE Engine Oil now features Syntec Power Technology, which enhances its performance even further.
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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: 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

Castrol – GTX High Mileage Synthetic Blend 10W-30 Motor Oil: Helps Protect Emission Systems, 1 Quart (Part No.149D6C)

GTX High Mileage Synthetic Blend 10W-30 Motor Oil: Helps Protect Emission Systems, 1 Quart

from

$10.49
Castrol® GTX® High Mileage motor oil is the leading consumer high-mileage brand. It’s a synthetic blend motor oil that helps extend the life of your engine by protecting against sludge, wear and burn-off. Castrol GTX High Mileage is also engineered to protect your emission system. One of the leading causes of ‘check engine’ lights coming on in high mileage cars is 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 is formulated 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, there is no better choice than Castrol GTX High Mileage.

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)
  • Seal conditioners to help reduce leaks
  • Advanced additives that minimize engine wear
  • Improved fuel economy (in 5W-20, 5W-30 and 10W-30 grades versus industry specifications)
  • Meets or exceeds API SP/SN PLUS/SN and ILSAC GF-6 specs
See More

Castrol – EDGE® 10W-30 Full Synthetic Motor Oil 5 Quart (Part No.1598B6)

EDGE® 10W-30 Full Synthetic Motor Oil 5 Quart

from

$37.99
Castrol EDGE with Fluid TITANIUM Technology, is Castrol’s strongest oil and the natural choice for drivers who want the best combination of sludge protection, wear protection and maximum engine performance. Unlock maximum performance with every drive.

Product Features:
  • 3X Stronger against viscosity breakdown than the leading full synthetic – Based on Kurt Orbahn test in 5W-30 grade
  • 10X Better High Temperature performance – As measured in Seq IIIH engine test vs. API SP limit
  • 6X Better Wear Protection – As measured in Seq IVA test vs. latest test limit
  • Meets API SP/SN PLUS, ILSAC GF-6, ACEA A1/B1, GM 6094M and 4718M, Meets engine test requirements of Chrysler MS 6395
See More

LIQUI MOLY – TopTec 4200 Long Life Full Synthetic 5W-30 Motor Oil: Long Life, Reduces Build Up, 5 Liter (Part No.2011)

TopTec 4200 Long Life Full Synthetic 5W-30 Motor Oil: Long Life, Reduces Build Up, 5 Liter

from

$56.99
High-tech low-friction motor oil based on synthetic technology. Ensures excellent engine cleanliness and exceeds even the strictest test requirements of well-known vehicle manufacturers. Reduces the build-up of troublesome deposits in direct-injection gasoline and diesel engines (FSI, TDI, common rail, etc.) and keeps oil consumption low. Assures reliable operation and maximizes the operating life of the diesel particulate filter (DPF). Specifically for vehicles with extremely long oil change intervals (WIV, etc.). Outstanding protection against wear, reduces oil and fuel consumption and ensures fast oil penetration of the engine.

Product Features:
  • Outstanding protection against wear
  • Reduces oil and fuel consumption
  • Ensure fast oil penetration of the engine
  • High tech low friction based on synthetic technology
  • Made in Germany
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Castrol – GTX Conventional 20W-50 Engine Oil: Helps Protect Against Sludge Build Up, 5 Quart (Part No.15984B)

GTX Conventional 20W-50 Engine Oil: Helps Protect Against Sludge Build Up, 5 Quart

from

$29.99
Castrol GTX is a premium conventional motor oil that has been helping to extend engine life for over 50 years. It continues to innovate to meet the needs of consumers and vehicle manufacturers and remains among the most trusted brands 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 not addressed, 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.

Product Features:
  • Premium quality base oils and anti-wear additives to help extend the life of your engine
  • Advanced protection against viscosity and thermal breakdown
  • Superior protection against engine sludge (when tested in engines with a high level of sludge)
  • Helps minimize oil consumption
  • Meets ilsac gf-6 specs
  • Unsurpassed thermal breakdown protection: GTX Engine Oil, 20W50 provides superior protection against thermal breakdown, ensuring that your engine stays cool and runs smoothly even under extreme conditions.
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LIQUI MOLY – Longtime High Tech Full Synthetic 5W-30 Engine Oil: Wear Protection, Maximum Performance, 5 Liter (Part No.2039)

Longtime High Tech Full Synthetic 5W-30 Engine Oil: Wear Protection, Maximum Performance, 5 Liter

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$45.99
Synthetic technology low-friction motor oil with the latest wear-protection technology and extremely high power reserve for maximum performance. Good dirt suspending and cleaning capacity ensures optimum engine cleanliness. Assures reliable operation and maximizes the operating life of the diesel particulate filter (DPF). Exceeds the highest test requirements of well-known vehicle manufacturers.An all-season oil for gasoline and diesel engines including common rail technology. Particularly suited for vehicles with a diesel particulate filter (DPF), also for retrofits.

Product Features:
  • Modern premium low friction engine oil
  • All season use reliable at high and low temperatures
  • Provides exceptional protection against wear
  • Reduces oil and fuel consumption
  • Ensures fast oil penetration of the engine
  • Made in germany
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Castrol – EDGE® 10W-30 Full Synthetic Motor Oil 1 Quart (Part No.152E4E)

EDGE® 10W-30 Full Synthetic Motor Oil 1 Quart

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$11.99
Castrol EDGE with Fluid TITANIUM Technology, is Castrol’s strongest oil and the natural choice for drivers who want the best combination of sludge protection, wear protection and maximum engine performance. Unlock maximum performance with every drive.

Product Features:
  • 3X Stronger against viscosity breakdown than the leading full synthetic – Based on Kurt Orbahn test in 5W-30 grade
  • 10X Better High Temperature performance – As measured in Seq IIIH engine test vs. API SP limit
  • 6X Better Wear Protection – As measured in Seq IVA test vs. latest test limit
  • Meets API SP/SN PLUS, ILSAC GF-6, ACEA A1/B1, GM 6094M and 4718M, Meets engine test requirements of Chrysler MS 6395
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Castrol – GTX Conventional 20W-50 Motor Oil: Helps Protect Against Sludge Build Up, 1 Quart (Part No.151A8E)

GTX Conventional 20W-50 Motor Oil: Helps Protect Against Sludge Build Up, 1 Quart

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$9.99
Castrol® GTX® is a premium conventional motor oil that has been helping to extend engine life for over 50 years. It continues to innovate to meet the needs of consumers and vehicle manufacturers and remains among the most trusted brands 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 not addressed, 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.

Product Features:
  • Premium quality base oils and anti-wear additives to help extend the life of your engine
  • Advanced protection against viscosity and thermal breakdown
  • Superior protection against engine sludge (when tested in engines with a high level of sludge)
  • Helps minimize oil consumption
  • Meets ILSAC GF-6 specs
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Castrol – EDGE High Mileage 10W-30 Full Synthetic Engine Oil 1 Quart (Part No.15979B)

EDGE High Mileage 10W-30 Full Synthetic Engine Oil 1 Quart

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$12.99
CASTROL EDGE High Mileage 10W-30 Full Synthetic Motor Oil 1 Quart is the perfect solution for vehicles with over 75K miles. It is formulated with Fluid Titanium Technology and Phosphorus Replacement Technology to provide 10X better high-temperature performance and 6X better wear protection. This motor oil meets API SP/SN PLUS, ILSAC GF-6, GM 6094M standards and offers motor oils that meet OEM specifications. It is available in different grades, including 5W-20, 5W-30, and 10W-30. This motor oil is the natural choice for consumers who want to extend maximum engine performance and preserve the catalytic converter and the emission system. Try CASTROL EDGE High Mileage today and experience the difference in your vehicle’s performance.

Product Features:
  • 10x better high temperature performance – as measured in seq iiih engine test vs. api sp limit
  • 6x better wear protection – as measured in seq iva test vs. latest test limit
  • From the makers of the No. 1 high mileage brand
  • Meets api sp/sn plus, ilsac gf-6, gm 6094m
  • Castrol edge offers engine 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
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Castrol – Conventional 30W Engine Oil – Protects against thermal breakdown – 1 Qt (Part No.151B00)

Conventional 30W Engine Oil - Protects against thermal breakdown - 1 Qt

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$8.49
Castrol Conventional 30W Engine Oil is a high-quality monograde oil that provides maximum engine wear protection. It contains dispersants, antioxidants, detergents, and other additives that help to keep the engine clean and running smoothly. This heavy-duty formula is engineered to provide greater protection against thermal breakdown, which can cause engine damage and reduce performance. Castrol Conventional 30W Engine Oil exceeds all passenger car and light-truck manufacturer’s warranty requirements and is made in the USA. It is an ideal choice for those who want to keep their engines running smoothly and efficiently. Protect your engine against thermal breakdown with Castrol Conventional 30W Engine Oil.

Product Features:
  • Heavy-duty formula provides maximum engine wear protection in warm climates; designed for use in temperatures above 40 Deg. F
  • Contains dispersants, antioxidants, detergents and varnish inhibitors that help prevent ring-sticking and build up of harmful engine deposits
  • Engineered for greater protection against thermal breakdown
  • Exceeds all passenger car and light-truck manufacturers’ warranty requirements for the protection of gasoline and turbocharged engines where api sm, sl, sj or sh is recommended
  • Made in the usa
  • Thermal Protection: GTX Engine Oil, SAE 30 provides superior protection against thermal breakdown, ensuring your engine stays cool and running smoothly.
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Mobil Super – 10W-30 Full Synthetic Motor Oil, 1 Quart (Part No.27737)

10W-30 Full Synthetic Motor Oil, 1 Quart

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$8.49
Mobil Super Synthetic 10W-30 full synthetic motor oils are engineered to provide outstanding engine protection in a wide variety of weather and driving conditions. Mobil Super helps to protect critical engine parts across a broad range of temperatures (up to 400 degrees Fahrenheit) without oxidative oil thickening and oil breakdown. Mobil Super Synthetic oils are specially formulated to help protect engines of all ages, and allows easy starting and rapid oil circulation during cold starts to protect critical engine parts. Meets or exceeds the latest industry specifications and API SN resource conserving. For our ultimate in performance and protection, consider our Mobil 1 motor oils, a family of advanced full synthetic engine oil.

Product Features:
  • Full synthetic motor oil engineered to provide outstanding engine protection for vehicles of all ages in a wide variety of weather and driving conditions
  • Helps to protect critical engine parts across a broad range of temperatures (up to 400 degrees F) without oxidative oil thickening and oil breakdown
  • Specially formulated to help easy starting and rapid oil circulation during cold starts to protect critical engine parts
  • Helps to control oil consumption and loss and provides protection beyond our conventional-synthetic blended products
  • Meets or exceeds the latest industry specifications and API SN resource conserving
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FAQs for 1998 Isuzu Trooper Engine Oil

What are the most popular Engine Oil for the 1998 Isuzu Trooper?

With 9 brands you can trust, our most popular Engine Oil for the 1998 Isuzu Trooper parts are:

What are the best aftermarket Engine Oil for the 1998 Isuzu Trooper?

See what past customers had to say about our highest-rated Engine Oil for the 1998 Isuzu Trooper: