Below you will find the best synthetic oil for a 1981 Gmc Trucks C2500 2WD LD 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 1981 C2500 2wd Ld Pickup
| Product Name | Product Description | Capacities | Product |
|---|---|---|---|
| Signature Series 10W-30 Synthetic Motor Oil | Get the best synthetic oil for your C2500 2wd Ld Pickup now! Save time and money and protect your Gmc Trucks. | With filter 5 quarts After refill check oil level. |
ATMQT-EA
Add To Cart  Add To Cart |
| XL 10W-30 Synthetic Motor Oil | Protect your C2500 2wd Ld Pickup with Amsoil and support the best MADE in USA oil! | With filter 5 quarts After refill check oil level. |
XLTQT-EA
Add To Cart Add To Cart |
| OE 10W-30 Synthetic Motor Oil | AMSOIL OE Synthetic Motor Oil is specially made for the extended oil change intervals recommended for your 1981 Gmc Trucks C2500 2wd Ld Pickup 5.0L 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 Gmc Trucks C2500 2wd Ld Pickup. | With filter 5 quarts After refill check oil level. |
OETQT-EA
Add To Cart Add To Cart |
Recommended oil filters for my 1981 C2500 2wd Ld Pickup
| Product Name | Product Description | Product |
|---|---|---|
| AMSOIL Ea Oil Filters | This filter is for your 1981 Gmc Trucks C2500 2wd Ld Pickup and is designed to last up to 25k (normal conditions) or 15k miles (severe conditions) or 1 year, whichever comes first. |
EAO24-EA
Add To Cart Add To Cart |
| WIX Oil Filter | WIX oil filter change intervals for your 1981 Gmc Trucks C2500 2wd Ld Pickup are extended OEM recommendations to match the drain intervals of AMSOIL XL Motor oil. (12,000 miles or 1 year, whichever comes first). |
51061-EA
Add To Cart Add To Cart |
Recommended fuel Filters for my 1981 C2500 2wd Ld Pickup
| Product Name | Product Description | Product |
|---|---|---|
| WIX Fuel Filters | Superior fuel cleansing for your 1981 Gmc Trucks C2500 2wd Ld Pickup and it will prevent pump wear, injector clogging, premature engine wear while helping boost your C2500 2wd Ld Pickup's fuel economy! |
33052-EA
Add To Cart Add To Cart |
| WIX Crankcase Filter | Get this awesome WIX crankcase filter for your 1981 Gmc Trucks C2500 2wd Ld Pickup and protect your engine. |
42995-EA
Add To Cart Add To Cart |
Recommended transmission fluids for my 1981 C2500 2wd Ld Pickup
| Product Name | Note | Capacities | Product Description | Product |
|---|---|---|---|---|
| SEVERE GEAR® 80W-90 | Manual Transmission Fluid (1) In Canada use 80W. |
3-SPD 3 pints
4-SPD 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
Add To Cart Add To Cart |
| SEVERE GEAR® 75W-90 | Manual Transmission Fluid (1) In Canada use 80W. |
3-SPD 3 pints
4-SPD 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
Add To Cart Add To Cart |
| SEVERE GEAR® 75W-110 | Manual Transmission Fluid (1) In Canada use 80W. |
3-SPD 3 pints
4-SPD 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
Add To Cart Add To Cart |
| Signature Series Multi-Vehicle Synthetic Automatic Transmission Fluid | Manual Transmission Fluid |
3-SPD 3 pints
4-SPD 8 pints |
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
Add To Cart Add To Cart |
| OE Multi-Vehicle Synthetic Automatic Transmission Fluid | Manual Transmission Fluid |
3-SPD 3 pints
4-SPD 8 pints |
Outsanding protection and resists varnish! Change interval based on your C2500 2wd Ld Pickup's recommendation. |
OTFQT-EA
Add To Cart Add To Cart |
| Torque-Drive® Synthetic Automatic Transmission Fluid | Manual Transmission Fluid |
3-SPD 3 pints
4-SPD 8 pints |
Awesome protection under extreme temperature! Protect heavy-duty transmissions with this made in the USA oil. Follow the service interval in your owner's manual. Protect your Gmc Trucks. |
ATD1G-EA
Add To Cart Add To Cart |
| 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 |
3 speed THM400 Total Fill 11 quarts
4.3 quarts Initial Fill
3 speed THM350 Total Fill 10 quarts
3.5 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
Add To Cart Add To Cart |
| 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 |
3 speed THM400 Total Fill 11 quarts
4.3 quarts Initial Fill
3 speed THM350 Total Fill 10 quarts
3.5 quarts Initial Fill |
Outstanding protection and resists varnish! Change interval based on your C2500 2wd Ld Pickup owner's manual. |
OTLQT-EA
Add To Cart Add To Cart |
Differential for my Gmc Trucks C2500 2wd Ld Pickup
| Product Name | Note | Capacities | Product Description | Product |
|---|---|---|---|---|
| SEVERE GEAR® 80W-90 | (1) In Canada use 80W. |
With 10.5 RG Dana Rear 5.5 pints
With 10.5 RG Others Rear 7.2 pints
With 12.25 RG Rear 13.9 pints
With 8.5 RG Rear 4.2 pints
With 8.8 RG Rear 3.6 pints
With 9.5 RG Rear 5.5 pints
With 9.75 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
Add To Cart Add To Cart |
| SEVERE GEAR® 75W-90 | (1) In Canada use 80W. |
With 10.5 RG Dana Rear 5.5 pints
With 10.5 RG Others Rear 7.2 pints
With 12.25 RG Rear 13.9 pints
With 8.5 RG Rear 4.2 pints
With 8.8 RG Rear 3.6 pints
With 9.5 RG Rear 5.5 pints
With 9.75 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
Add To Cart Add To Cart |
| SEVERE GEAR® 75W-110 | (1) In Canada use 80W. |
With 10.5 RG Dana Rear 5.5 pints
With 10.5 RG Others Rear 7.2 pints
With 12.25 RG Rear 13.9 pints
With 8.5 RG Rear 4.2 pints
With 8.8 RG Rear 3.6 pints
With 9.5 RG Rear 5.5 pints
With 9.75 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
Add To Cart Add To Cart |
Recommended coolants for my Gmc Trucks C2500 2wd Ld Pickup
| Product Name | Product Description | Capacities | Product |
|---|---|---|---|
| Passenger Car & Light Truck Antifreeze & Coolant | maximum protection for your 1981 Gmc Trucks C2500 2wd Ld Pickup under extreme temperatures and operating conditions! Lasts up to 150,000 miles or five years! (whichever comes first) |
ANTPC1G-EA
Add To Cart Add To Cart |
|
| Low Toxicity Antifreeze and Engine Coolant | Lasts in your 1981 Gmc Trucks C2500 2wd Ld Pickup for up to 150,000 miles or five years! (whichever comes first). Biodegradable! |
ANT1G-EA
Add To Cart Add To Cart |
Is ordering oil something you have considered but you do not know how to change your own car or trucks motor oil? No worries! Contact your local shop in your area and ask if you can bring your own oil. They should gladly accept and if they don't, that should be a red flag which means time to find someone else! It is very easy to find a local mechanic to put in Amsoil for you! This way you can enjoy your vehicle without going 3-4 times a year and wait an hour or so to change your car or truck's engine oil. Save time, money, and protect your engine today with the best synthetic motor oil made for your vehicle and it's made in the USA!
