Below you will find the best synthetic oil for a 1986 Oldsmobile FIRENZA. 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 1986 Firenza
| 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 Firenza's engine! | With filter 3.5 quarts After refill check oil level. |
ASLQT-EA
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| XL 5W-30 Synthetic Motor Oil | Protect your Firenza with the best synthetic oil! Amsoil backs up all claims with proof! Support American Oil! | With filter 3.5 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 1986 Oldsmobile Firenza 1.8L. 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 3.5 quarts After refill check oil level. |
OEFQT-EA
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Recommended oil filters for my 1986 Firenza
| Product Name | Product Description | Product |
|---|---|---|
| AMSOIL Ea Oil Filters | This is the best oil filter for your 1986 Oldsmobile Firenza 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 1986 Oldsmobile Firenza 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 1986 Firenza
| Product Name | Product Description | Product |
|---|---|---|
| WIX Fuel Filters | Superior fuel cleansing for your 1986 Oldsmobile Firenza and it will prevent pump wear, injector clogging, premature engine wear while helping boost your Firenza's fuel economy! |
33481-EA
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Recommended transmission fluids for my 1986 Firenza
| Product Name | Note | Capacities | Product Description | Product |
|---|---|---|---|---|
| Manual Synchromesh Transmission Fluid 5W-30 | Manual Transmission Fluid |
Isuzu (5-SPD) 5.5 pints Identification: Isuzu has a 7-bolt aluminum end cap, Muncie has a 9-bolt steel end cap.
Torques:
Manual Transmission Drain Plug...NA ft/lbs
Manual Transmission Fill Plug...
Muncie (5-SPD) 4.4 pints Identification: Isuzu has a 7-bolt aluminum end cap, Muncie has a 9-bolt steel end cap.
Torques:
Manual Transmission Drain Plug...18 ft/lbs |
Resistant to heat, oxidation, acid buildup and varnish! Protect your 1986 Oldsmobile Firenza Recommended for 50,000-mile service intervals or even longer (up to 150,000 miles) as indicated in your 1986 Oldsmobile Firenza 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 |
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 |
3 speed THM125C Total Fill 6 quarts 4 quarts Initial Fill | Outstanding protection and resists varnish! Change interval based on your Firenza owner's manual. |
OTLQT-EA
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Recommended coolants for my Oldsmobile Firenza
| Product Name | Product Description | Capacities | Product |
|---|---|---|---|
| Passenger Car & Light Truck Antifreeze & Coolant | maximum protection for your 1986 Oldsmobile Firenza 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 1986 Oldsmobile Firenza for up to 150,000 miles or five years! (whichever comes first). Biodegradable! |
ANT1G-EA
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Do a great thing for the environment! By millions of people changing their oil less often, disposal of oil is diminished! In addition to this, you will save hours on a weekend since you will only have to change your oil every year if you drive 15,000 miles or less each calendar year. Also, Amsoil is proudly made in the U.S.A. and supporting American workers is a great thing to do while providing outstanding protection to your car or truck! Don't change your own oil? Do a search for a local mechanic and they should change it for you for no more than 1 hour labor. Take the oil and the filter. If you really want to bulletproof your engine, get the transmission fluid for your vehicle listed on this page!


