Below you will find the best synthetic oil for a 1991 Pontiac GRAND PRIX. 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 Grand Prix
| Product Name | Product Description | Capacities | Product |
|---|---|---|---|
| Signature Series 10W-30 Synthetic Motor Oil | Get the best synthetic oil for your Grand Prix now! Save time and money and protect your Pontiac. | With filter 4.5 quarts After refill check oil level. |
ATMQT-EA
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| XL 10W-30 Synthetic Motor Oil | Protect your Grand Prix with Amsoil and support the best MADE in USA oil! | With filter 4.5 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 1991 Pontiac Grand Prix 3.1L 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 Pontiac Grand Prix. | With filter 4.5 quarts After refill check oil level. |
OETQT-EA
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Recommended oil filters for my 1991 Grand Prix
| Product Name | Product Description | Product |
|---|---|---|
| AMSOIL Ea Oil Filters | This filter is for your 1991 Pontiac Grand Prix 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 Pontiac Grand Prix 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 fuel Filters for my 1991 Grand Prix
| Product Name | Product Description | Product |
|---|---|---|
| WIX Fuel Filters | Superior fuel cleansing for your 1991 Pontiac Grand Prix and it will prevent pump wear, injector clogging, premature engine wear while helping boost your Grand Prix's fuel economy! |
33481-EA
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Recommended transmission fluids for my 1991 Grand Prix
| Product Name | Note | Capacities | Product Description | Product |
|---|---|---|---|---|
| Manual Synchromesh Transmission Fluid 5W-30 | Manual Transmission Fluid |
M27 (5-SPD) 4.2 pints | Resistant to heat, oxidation, acid buildup and varnish! Protect your 1991 Pontiac Grand Prix Recommended for 50,000-mile service intervals or even longer (up to 150,000 miles) as indicated in your 1991 Pontiac Grand Prix 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 |
6 quarts Initial Fill
4 speed THM440-T4 Total Fill 10 quarts
4 speed 4T60-E Total Fill 11.1 quarts
6 quarts Initial Fill
3 speed THM125C Total Fill 6 quarts
4 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 |
6 quarts Initial Fill
4 speed THM440-T4 Total Fill 10 quarts
4 speed 4T60-E Total Fill 11.1 quarts
6 quarts Initial Fill
3 speed THM125C Total Fill 6 quarts
4 quarts Initial Fill |
Outstanding protection and resists varnish! Change interval based on your Grand Prix owner's manual. |
OTLQT-EA
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Recommended coolants for my Pontiac Grand Prix
| Product Name | Product Description | Capacities | Product |
|---|---|---|---|
| Passenger Car & Light Truck Antifreeze & Coolant | maximum protection for your 1991 Pontiac Grand Prix 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 Pontiac Grand Prix 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.
