Below you will find the best synthetic oil for a 1981 Dodge DIPLOMAT. 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 Diplomat
| Product Name | Product Description | Capacities | Product |
|---|---|---|---|
| Signature Series 10W-30 Synthetic Motor Oil | Get the best synthetic oil for your Diplomat now! Save time and money and protect your Dodge. | With filter 5 quarts After refill check oil level. |
ATMQT-EA
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| XL 10W-30 Synthetic Motor Oil | Protect your Diplomat with Amsoil and support the best MADE in USA oil! | With filter 5 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 1981 Dodge Diplomat 3.7L 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 Dodge Diplomat. | With filter 5 quarts After refill check oil level. |
OETQT-EA
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Recommended oil filters for my 1981 Diplomat
| Product Name | Product Description | Product |
|---|---|---|
| AMSOIL Ea Oil Filters | This filter is for your 1981 Dodge Diplomat and is designed to last up to 25k (normal conditions) or 15k miles (severe conditions) or 1 year, whichever comes first. |
EAO42-EA
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| WIX Oil Filter | WIX oil filter change intervals for your 1981 Dodge Diplomat are extended OEM recommendations to match the drain intervals of AMSOIL XL Motor oil. (12,000 miles or 1 year, whichever comes first). |
51068-EA
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Recommended transmission fluids for my 1981 Diplomat
| Product Name | Note | Capacities | Product Description | Product |
|---|---|---|---|---|
| Signature Series Multi-Vehicle Synthetic Automatic Transmission Fluid | Automatic Transmission Fluid |
3 speed With O Lockup A904(30RH) Total Fill 8.8 quarts 3 speed With Lockup A904(30RH) Total Fill 8.6 quarts 4 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 |
3 speed With O Lockup A904(30RH) Total Fill 8.8 quarts 3 speed With Lockup A904(30RH) Total Fill 8.6 quarts 4 quarts Initial Fill | Outsanding protection and resists varnish! Change interval based on your Diplomat's recommendation. |
OTFQT-EA
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Transmission filters
| Product Name | Product Description | Product |
|---|---|---|
| WIX Transmission Filter | Use this WIX Transmission Filter since it will protect your 1981 Dodge Diplomat's transmission from harmful debris and the awesome filtration will reduce wear in your Diplomat. |
58707-EA
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Differential for my Dodge Diplomat
| Product Name | Note | Capacities | Product Description | Product |
|---|---|---|---|---|
| SEVERE GEAR® 80W-90 | (1) Add 4 oz of Mopar limited-slip additive (MS-10111). |
Rear 4.4 pints
With 7.25 RG 9bc Rear 2.1 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) Add 4 oz of Mopar limited-slip additive (MS-10111). |
Rear 4.4 pints
With 7.25 RG 9bc Rear 2.1 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) Add 4 oz of Mopar limited-slip additive (MS-10111). |
Rear 4.4 pints
With 7.25 RG 9bc Rear 2.1 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 Dodge Diplomat
| Product Name | Product Description | Capacities | Product |
|---|---|---|---|
| Passenger Car & Light Truck Antifreeze & Coolant | maximum protection for your 1981 Dodge Diplomat 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 1981 Dodge Diplomat for up to 150,000 miles or five years! (whichever comes first). Biodegradable! |
ANT1G-EA
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Get 75% more engine protection, 50% more cleaning power, and 72% better protection for turbochargers with Amsoil Signature Series. It neutralizes 28% more acid than Mobil 1 and is trusted by industry experts. You're covered for up to 25,000 miles or 1 year. Upgrade your engine protection today!
