Below you will find the best synthetic oil for a 1991 Isuzu PICKUP. 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 1991 Pickup
| Product Name | Product Description | Capacities | Product |
|---|---|---|---|
| Signature Series 10W-30 Synthetic Motor Oil | Get the best synthetic oil for your Pickup now! Save time and money and protect your Isuzu. | With filter 4.4 quarts After refill check oil level. |
ATMQT-EA
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| XL 10W-30 Synthetic Motor Oil | Protect your Pickup with Amsoil and support the best MADE in USA oil! | With filter 4.4 quarts After refill check oil level. |
XLTQT-EA
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| OE 10W-30 Synthetic Motor Oil | AMSOIL OE Synthetic Motor Oil is specially made for the extended oil change intervals recommended for your 1991 Isuzu Pickup 2.6L engine. 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. Get the best synthetic oil now for your Isuzu Pickup. | With filter 4.4 quarts After refill check oil level. |
OETQT-EA
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Recommended oil filters for my 1991 Pickup
| Product Name | Product Description | Product |
|---|---|---|
| AMSOIL Ea Oil Filters | This is the best oil filter for your 1991 Isuzu Pickup and is designed to last up to 25k (normal conditions) or 15k miles (severe conditions) or 1 year, whichever comes first. |
EA15K20-EA
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| WIX Oil Filter | WIX oil filter change intervals for your 1991 Isuzu Pickup are extended OEM recommendations to match the drain intervals of AMSOIL XL Motor oil. (12,000 miles or 1 year, whichever comes first). |
51334-EA
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Recommended fuel Filters for my 1991 Pickup
| Product Name | Product Description | Product |
|---|---|---|
| WIX Fuel Filters | This Wix fuel filter for the 1991 Isuzu Pickup will protect pumps from wear, prevent injectors from clogging and help boost fuel efficiency. |
33023-EA
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Recommended transmission fluids for my 1991 Pickup
| Product Name | Note | Capacities | Product Description | Product |
|---|---|---|---|---|
| Signature Series 5W-30 Synthetic Motor Oil | Manual Transmission Fluid |
MSG5C (5-SPD) 3.2 pints
MUA5T (5-SPD) 6.3 pints |
Save time and money and costly repairs at the auto shop! Amsoil has your back! Bullet proof your Pickup's engine! |
ASLQT-EA
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| XL 5W-30 Synthetic Motor Oil | Manual Transmission Fluid |
MSG5C (5-SPD) 3.2 pints
MUA5T (5-SPD) 6.3 pints |
Protect your Pickup with the best synthetic oil! Amsoil backs up all claims with proof! Support American Oil! |
XLFQT-EA
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| OE 5W-30 Synthetic Motor Oil | Manual Transmission Fluid |
MSG5C (5-SPD) 3.2 pints
MUA5T (5-SPD) 6.3 pints |
AMSOIL OE Synthetic Motor Oil is specially made for the extended oil change intervals recommended for your 1991 Isuzu Pickup 2.6L. 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. |
OEFQT-EA
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| Signature Series Multi-Vehicle Synthetic Automatic Transmission Fluid | Automatic Transmission Fluid |
4 speed 03-75 Total Fill 6.9 quarts 2.6 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 03-75 Total Fill 6.9 quarts 2.6 quarts Initial Fill | Outsanding protection and resists varnish! Change interval based on your Pickup's recommendation. |
OTFQT-EA
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Differential for my Isuzu Pickup
| Product Name | Note | Capacities | Product Description | Product |
|---|---|---|---|---|
| SEVERE GEAR® 80W-90 |
Front 3.2 pints
With SGRX Rear 3.8 pints |
This lube is made to exceed the requirements of equipment and all vehicles that require SAE 80W-90 viscosity. It is made with synthetic base oils and top additives without adding any wax. Amsoil Severe Gear is solid against thermal breakdown. Will give you awesome protection for bearings and gears and tough against heat which will help extend the life of your equipment and avoid costly repairs. Made in the U.S.A. |
AGLPK-EA
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|
| SEVERE GEAR® 75W-90 |
Front 3.2 pints
With SGRX Rear 3.8 pints |
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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|
| SEVERE GEAR® 75W-110 |
Front 3.2 pints
With SGRX Rear 3.8 pints |
This is a fantastic lubricant for towing trailers, heavy duty hauling, off road driving/4x4, commercial applications, and for race enthusiasts. This severe gear lube will protect bearings, gears from friction and exceeds performance of any regular gear oil out there! Keep your truck or vehicle out of the shop and avoid costly repairs with this made in the USA lube. |
SVTPK-EA
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|
| Signature Series 5W-30 Synthetic Motor Oil | With MT 3.2 pints | Save time and money and costly repairs at the auto shop! Amsoil has your back! Bullet proof your Pickup's engine! |
ASLQT-EA
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|
| XL 5W-30 Synthetic Motor Oil | With MT 3.2 pints | Protect your Pickup with the best synthetic oil! Amsoil backs up all claims with proof! Support American Oil! |
XLFQT-EA
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|
| OE 5W-30 Synthetic Motor Oil | With MT 3.2 pints | AMSOIL OE Synthetic Motor Oil is specially made for the extended oil change intervals recommended for your 1991 Isuzu Pickup 2.6L. 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. |
OEFQT-EA
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Recommended coolants for my Isuzu Pickup
| Product Name | Product Description | Capacities | Product |
|---|---|---|---|
| Passenger Car & Light Truck Antifreeze & Coolant | maximum protection for your 1991 Isuzu Pickup 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 1991 Isuzu Pickup for up to 150,000 miles or five years! (whichever comes first). Biodegradable! |
ANT1G-EA
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Just as with any synthetic motor oil brand, Amsoil will not void your car or truck's warranty! Less wear and tear on your engine is the benefit you will receive by using Amsoil. Less visits to the mechanic for engine service and oil changes as well which will save you hours of time and a significant amount of money. Order today! Not only will you protect your engine but you will support American jobs as Amsoil is made in the U.S.A. If you change your own oil you can look up the capacity of your vehicle on our page and we really appreciate you visiting our site. Be sure to top off your oil every month or so which means check the oil level and make sure it is not low. If your capacity is a whole number of quarts, grab an extra quart to top off. This also refreshes the protective additives in the oil. Thanks for visiting this page!!


