Below you will find the best synthetic oil for a 2003 Isuzu ASCENDER. Maximize your vehicle's potential with 100% full synthetic oil that is made in the USA! For more than the past 50 years, AMSOIL has perfected the art of maximizing efficiency and engine life. The advanced synthetic formulas deliver superior protection from heat, friction, and wear, keeping engines as good as new for miles. Upgrade to AMSOIL today and experience better performance, reliability, and reduced oil consumption. Click add to cart for more details. Sign up as a preferred customer and get discounts and more! The oil type, capacity and oil filter (if available) are listed below and verified for accuracy. Upgrade now!
Recommended oil for my 2003 Ascender
| Product Name | Product Description | Capacities | Product |
|---|---|---|---|
| Signature Series 5W-30 Synthetic Motor Oil | Save time and money and costly repairs at the auto shop! Amsoil has your back! Bullet proof your Ascender's engine! | With filter 6 quarts After refill check oil level. |
ASLQT-EA
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| XL 5W-30 Synthetic Motor Oil | Protect your Ascender with the best synthetic oil! Amsoil backs up all claims with proof! Support American Oil! | With filter 6 quarts After refill check oil level. |
XLFQT-EA
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| OE 5W-30 Synthetic Motor Oil | AMSOIL OE Synthetic Motor Oil is specially made for the extended oil change intervals recommended for your 2003 Isuzu Ascender 5.3L. It has advanced synthetic technology that resists chemical breakdown for maximum wear protection for your vehicle which is well beyond the traditional 3,000-mile oil change interval. | With filter 6 quarts After refill check oil level. |
OEFQT-EA
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Recommended oil filters for my 2003 Ascender
| Product Name | Product Description | Product |
|---|---|---|
| AMSOIL Ea Oil Filters | This is the best oil filter for your 2003 Isuzu Ascender and is designed to last up to 25k (normal conditions) or 15k miles (severe conditions) or 1 year, whichever comes first. |
EA15K32-EA
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| WIX Oil Filter | WIX oil filter change intervals for your 2003 Isuzu Ascender are extended OEM recommendations to match the drain intervals of AMSOIL XL Motor oil. (12,000 miles or 1 year, whichever comes first). |
51042-EA
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Recommended cabin & Air Filters for my Isuzu Ascender
| Product Name | Product Description | Product |
|---|---|---|
| WIX Air Filter | Great air filter for your 2003 Isuzu Ascender. |
42729-EA
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Recommended fuel Filters for my 2003 Ascender
| Product Name | Product Description | Product |
|---|---|---|
| WIX Fuel Filters | Superior fuel cleansing for your 2003 Isuzu Ascender and it will prevent pump wear, injector clogging, premature engine wear while helping boost your Ascender's fuel economy! |
33129-EA
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Recommended transmission fluids for my 2003 Ascender
| Product Name | Note | Capacities | Product Description | Product |
|---|---|---|---|---|
| Signature Series Multi-Vehicle Synthetic Automatic Transmission Fluid | Automatic Transmission Fluid |
4 speed 4L60-E Total Fill 11.2 quarts 5 quarts Initial Fill | Amsoil's Signature Series Multi-Vehicle Synthetic automatic transmission fluid is made to blow the doors off any regular or conventional ATF fluids on the market and our oil surpasses the performance needs of most vehicles. Protect your transmission and avoid costly repairs. This fluid has an advanced formula to give awesome top-notch protection under harsh operating conditions. Transmission repairs are expensive so protect your vehicle with this great fluid! |
ATFPK-EA
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| OE Multi-Vehicle Synthetic Automatic Transmission Fluid | Automatic Transmission Fluid |
4 speed 4L60-E Total Fill 11.2 quarts 5 quarts Initial Fill | Outsanding protection and resists varnish! Change interval based on your Ascender's recommendation. |
OTFQT-EA
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Transmission filters
| Product Name | Product Description | Product |
|---|---|---|
| WIX Transmission Filter | This WIX Transmission Filter will protect your 2003 Isuzu Ascender's transmission from harmful debris and the awesome filtration will reduce wear in your Ascender. |
58847-EA
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| WIX Transmission Filter | Wix transmission filters will protect your 2003 Isuzu Ascender's transmission from harmful contaminants in the transmission fluid system and proper filtration reduces wear and prevents sticking in your Ascender. |
58904-EA
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Differential for my Isuzu Ascender
| Product Name | Note | Capacities | Product Description | Product |
|---|---|---|---|---|
| SEVERE GEAR® 75W-90 |
Front 1.7 pints
Notes:
(1) Use synthetic axle lubricant P/N 88900401 which replaces previously recommended synthetic lubricant P/N 12378261 meeting GM Specification 9986115.
Rear 4.6 pints
Notes:
(1) Use synthetic axle lubricant P/N 88900401 which replaces previously recommended synthetic lubricant P/N 12378261 meeting GM Specification 9986115. |
This special formula is made for harsh operating conditions that pick-up trucks endure. Also top-notch protection for SUVs, heavy equipment, and other heavy-duty vehicles. Made in the USA. |
SVGPK-EA
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Recommended coolants for my Isuzu Ascender
| Product Name | Product Description | Capacities | Product |
|---|---|---|---|
| Passenger Car & Light Truck Antifreeze & Coolant | maximum protection for your 2003 Isuzu Ascender under extreme temperatures and operating conditions! Lasts up to 150,000 miles or five years! (whichever comes first) |
ANTPC1G-EA
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|
| Low Toxicity Antifreeze and Engine Coolant | Lasts in your 2003 Isuzu Ascender for up to 150,000 miles or five years! (whichever comes first). Biodegradable! |
ANT1G-EA
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Amsoil stands out among other oils for its exceptional ability to safeguard car engines with unmatched efficiency. Its advanced synthetic formula forms a resilient barrier against wear and tear, ensuring prolonged engine life and reduced maintenance needs. Unlike conventional oils, AMSOIL maintains its viscosity and stability even under extreme temperatures, preventing thermal breakdown and oxidation that can compromise engine performance. Whether facing scorching heat or bone-chilling cold, Amsoil keeps engines protected and operating at their best. Moreover, its superior lubrication properties ensure smooth operation, minimizing friction and heat buildup that can lead to premature wear. With Amsoil, drivers can trust that their engines are receiving the highest level of protection, giving them peace of mind on the road and beyond. You will find the best synthetic oil for your car or truck on this page! Thank you for visiting!
