Below you will find the best synthetic oil for a 1991 Buick LESABRE. 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 Lesabre
| Product Name | Product Description | Capacities | Product |
|---|---|---|---|
| Signature Series 10W-30 Synthetic Motor Oil | Get the best synthetic oil for your Lesabre now! Save time and money and protect your Buick. | With filter 4.5 quarts After refill check oil level. |
ATMQT-EA
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| XL 10W-30 Synthetic Motor Oil | Protect your Lesabre 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 Buick Lesabre 3.8L 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 Buick Lesabre. | With filter 4.5 quarts After refill check oil level. |
OETQT-EA
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Recommended oil filters for my 1991 Lesabre
| Product Name | Product Description | Product |
|---|---|---|
| AMSOIL Ea Oil Filters | This is the best oil filter for your 1991 Buick Lesabre and is designed to last up to 25k (normal conditions) or 15k miles (severe conditions) or 1 year, whichever comes first. |
EA15K29-EA
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| WIX Oil Filter | WIX oil filter change intervals for your 1991 Buick Lesabre are extended OEM recommendations to match the drain intervals of AMSOIL XL Motor oil. (12,000 miles or 1 year, whichever comes first). |
51040-EA
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Recommended fuel Filters for my 1991 Lesabre
| Product Name | Product Description | Product |
|---|---|---|
| WIX Fuel Filters | Superior fuel cleansing for your 1991 Buick Lesabre and it will prevent pump wear, injector clogging, premature engine wear while helping boost your Lesabre's fuel economy! |
33481-EA
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Recommended transmission fluids for my 1991 Lesabre
| Product Name | Note | Capacities | Product Description | Product |
|---|---|---|---|---|
| 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 11 quarts | 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 11 quarts | Outstanding protection and resists varnish! Change interval based on your Lesabre owner's manual. |
OTLQT-EA
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Recommended coolants for my Buick Lesabre
| Product Name | Product Description | Capacities | Product |
|---|---|---|---|
| Passenger Car & Light Truck Antifreeze & Coolant | maximum protection for your 1991 Buick Lesabre 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 Buick Lesabre for up to 150,000 miles or five years! (whichever comes first). Biodegradable! |
ANT1G-EA
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This is the synthetic oil type for your vehicle. On this page, we list the type of oil, engine oil capacity, transmission oil type, and even differential fluid for your specific car or truck. We even list the filter that will fit your engine. Save money with less frequent oil changes since our signature series can last up to one year. Look up YouTube video tutorials and you can do it yourself for further savings!
