Below you will find the best synthetic oil for a 1991 Chevrolet Trucks K1500 4WD 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 K1500 4wd Pickup
| 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 K1500 4wd Pickup's engine! | With filter 5 quarts After refill check oil level. |
ASLQT-EA
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| XL 5W-30 Synthetic Motor Oil | Protect your K1500 4wd Pickup with the best synthetic oil! Amsoil backs up all claims with proof! Support American Oil! | With filter 5 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 1991 Chevrolet Trucks K1500 4wd Pickup 5.7L. 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 5 quarts After refill check oil level. |
OEFQT-EA
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Recommended oil filters for my 1991 K1500 4wd Pickup
| Product Name | Product Description | Product |
|---|---|---|
| AMSOIL Ea Oil Filters | This filter is for your 1991 Chevrolet Trucks K1500 4wd Pickup and is designed to last up to 25k (normal conditions) or 15k miles (severe conditions) or 1 year, whichever comes first. |
EAO23-EA
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| WIX Oil Filter | WIX oil filter change intervals for your 1991 Chevrolet Trucks K1500 4wd Pickup are extended OEM recommendations to match the drain intervals of AMSOIL XL Motor oil. (12,000 miles or 1 year, whichever comes first). |
51036-EA
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Recommended cabin & Air Filters for my Chevrolet Trucks K1500 4wd Pickup
| Product Name | Product Description | Product |
|---|---|---|
| WIX Air Filter | Wix Air Filter for your 1991 Chevrolet Trucks K1500 4wd Pickup. |
42098-EA
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Recommended fuel Filters for my 1991 K1500 4wd Pickup
| Product Name | Product Description | Product |
|---|---|---|
| WIX Fuel Filters | Superior fuel cleansing for your 1991 Chevrolet Trucks K1500 4wd Pickup and it will prevent pump wear, injector clogging, premature engine wear while helping boost your K1500 4wd Pickup's fuel economy! |
33481-EA
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| WIX Crankcase Filter | Get this awesome WIX crankcase filter for your 1991 Chevrolet Trucks K1500 4wd Pickup and protect your engine. |
42995-EA
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Recommended transmission fluids for my 1991 K1500 4wd Pickup
| Product Name | Note | Capacities | Product Description | Product |
|---|---|---|---|---|
| Manual Synchromesh Transmission Fluid 5W-30 | Manual Transmission Fluid (1) Original recommendation of GM P/N 12345577 has been superseded with GM P/N 12345349. |
5LM60/MY2 4.2 pints
Torques:
Manual Transmission Drain Plug...44 ft/lbs
Manual Transmission Fill Plug...44 ft/lbs
SM465/M20 8.5 pints |
Resistant to heat, oxidation, acid buildup and varnish! Protect your 1991 Chevrolet Trucks K1500 4wd Pickup Recommended for 50,000-mile service intervals or even longer (up to 150,000 miles) as indicated in your 1991 Chevrolet Trucks K1500 4wd Pickup manual. |
MTFQT-EA
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| Signature Series Fuel-Efficient Synthetic Automatic Transmission Fluid | Automatic Transmission Fluid (1) This specification has been updated from Dexron II or III to Dexron VI per a Technical Service Bulletin from the manufacturer |
5 quarts Initial Fill
4 speed THM700-R4 Total Fill 11.5 quarts
4 speed 4L80-E Total Fill 13.5 quarts
5 quarts Initial Fill |
If a lighter viscosity is needed then this automatic transmission fluid provides top-notch protection! Recommended for Toyota, Ford, and General Motors transmissions. You will get the same awesome protection as Amsoil's Signature Series Multi-Vehicle automatic transmission fluid. Also recommended for vehicles that need GM DEXRON® VI, Ford MERCON® LV and SP, Honda DW-1, Nissan Matic-S, and Toyota WS fluid specifications. |
ATLPK-EA
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| OE Fuel-Efficient Synthetic Automatic Transmission Fluid | Automatic Transmission Fluid (1) This specification has been updated from Dexron II or III to Dexron VI per a Technical Service Bulletin from the manufacturer |
5 quarts Initial Fill
4 speed THM700-R4 Total Fill 11.5 quarts
4 speed 4L80-E Total Fill 13.5 quarts
5 quarts Initial Fill |
Outstanding protection and resists varnish! Change interval based on your K1500 4wd Pickup owner's manual. |
OTLQT-EA
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Transmission filters
| Product Name | Product Description | Product |
|---|---|---|
| WIX Transmission Filter | Wix transmission filters will protect your 1991 Chevrolet Trucks K1500 4wd Pickup's transmission from harmful contaminants in the transmission fluid system and proper filtration reduces wear and prevents sticking in your K1500 4wd Pickup. |
58608-EA
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| WIX Transmission Filter | WIX Transmission Filter will protect your 1991 Chevrolet Trucks K1500 4wd Pickup's transmission from harmful debris and the awesome filtration will reduce wear in your K1500 4wd Pickup. |
58836-EA
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| WIX Transmission Filter | WIX Transmission Filter will protect your 1991 Chevrolet Trucks K1500 4wd Pickup's transmission from harmful debris and the awesome filtration will reduce wear in your K1500 4wd Pickup. |
58897-EA
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Differential for my Chevrolet Trucks K1500 4wd Pickup
| Product Name | Note | Capacities | Product Description | Product |
|---|---|---|---|---|
| SEVERE GEAR® 80W-90 | (1) Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6" rear axles.All 9.5" rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced with GM gasket P/N 327739. |
Front 3.6 pints
Notes:
(1) In cold climates when excessive shift effort is required to shift into 4WD GM part no. 12345836 or equivalent may be used in front differential.
10.5 RG With O Dana Rear 7.2 pints
With 8.5, 8.6 RG Rear 4.2 pints
With 9.5 RG Rear 5.5 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 | (1) Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6" rear axles.All 9.5" rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced with GM gasket P/N 327739. |
Front 3.6 pints
Notes:
(1) In cold climates when excessive shift effort is required to shift into 4WD GM part no. 12345836 or equivalent may be used in front differential.
10.5 RG With O Dana Rear 7.2 pints
With 8.5, 8.6 RG Rear 4.2 pints
With 9.5 RG Rear 5.5 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 | (1) Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6" rear axles.All 9.5" rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced with GM gasket P/N 327739. |
Front 3.6 pints
Notes:
(1) In cold climates when excessive shift effort is required to shift into 4WD GM part no. 12345836 or equivalent may be used in front differential.
10.5 RG With O Dana Rear 7.2 pints
With 8.5, 8.6 RG Rear 4.2 pints
With 9.5 RG Rear 5.5 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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Recommended coolants for my Chevrolet Trucks K1500 4wd Pickup
| Product Name | Product Description | Capacities | Product |
|---|---|---|---|
| Passenger Car & Light Truck Antifreeze & Coolant | maximum protection for your 1991 Chevrolet Trucks K1500 4wd 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 Chevrolet Trucks K1500 4wd Pickup for up to 150,000 miles or five years! (whichever comes first). Biodegradable! |
ANT1G-EA
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Maximize your engine's performance when towing or hauling. Synthetic motor oils have less viscosity breakdown over time, which protects pistons, cams, and bearings. By reducing friction, synthetic oils improve horsepower output and engine torque – keeping you moving when you need it most.
