1994 Oldsmobile 98 Oil Type & Capacity
3.8L · Factory specs and recall history
- Engine 3.8L
- Fuel Gasoline
Instant answer
4.5 qt of SAE 10W-30
Oil capacity
4.5 qt
Refill volume including a new filter
Oil viscosity
SAE 10W-30
SAE grade the manufacturer specifies
Change interval
Estimated5,000 miles
Manufacturer maximum between changes
Trims covered
These specs resolve across the model year as a whole, so they cover all 2 trims the catalog holds for it:
- Regency
- Regency Elite
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Oil type and capacity for the 1994 Oldsmobile 98, plus the recall campaigns NHTSA has filed against this year, make and model. Every figure says where it came from, so you can tell a published specification from an estimate at a glance.
Engine oil
1994 Oldsmobile 98 oil type and capacity
The 1994 Oldsmobile 98 takes SAE 10W-30 engine oil, about 4.5 qt with a filter change.
- Oil viscosity SAE grade the manufacturer specifies
- SAE 10W-30 Verified spec
- Oil capacity Refill volume including a new filter
- 4.5 qt Verified spec
- Change interval Manufacturer maximum between changes
- 5,000 miles Estimated
- Or every Whichever comes first
- 6 months Estimated
Know when your 98 is actually due
These are the numbers for the model year. Add your own 98 and we track oil life against your real mileage, then email you the week it is due.
Safety recalls
1994 Oldsmobile 98 recalls
Campaigns NHTSA has filed against this year, make and model, grouped by what the campaign actually asks an owner to do.
We have not completed a recall check for this vehicle yet, so this page cannot tell you whether campaigns exist. That is not the same as there being none.
Check your own VIN on NHTSA.gov
Keep a record of what has been done
Log the work as it happens with dates, mileage, cost and photos, so a remedy you have already had carried out is something you can show rather than something you have to remember.
Never look up your 98's numbers again.
Add yours and these figures stop being a reference and start being your car. It takes a minute.
- Oil life tracked against your real mileage
- Every fill-up, with the cost and MPG behind it
- Registration and insurance dates that stop surprising you
- Service history with photos and receipts
One weekly email, and only when something is actually due.
Common questions
1994 Oldsmobile 98 maintenance questions
What kind of oil does a 1994 Oldsmobile 98 take?
The 1994 Oldsmobile 98 takes SAE 10W-30 engine oil, about 4.5 qt with a filter change.
How often does a 1994 Oldsmobile 98 need an oil change?
Every 5,000 miles or 6 months, whichever comes first. This figure is estimated from the engine rather than taken from a published spec, so confirm it against the owner's manual.
Where these figures come from
- Vehicle details are decoded from VIN data published by NHTSA's vPIC database.
- Fuel economy comes from the EPA's published fuel economy dataset.
- Recall campaigns come from NHTSA. A campaign covers a VIN range within a model year, so a listing here is never a statement about a specific vehicle.
- Service specs are compiled per trim. Anything marked Estimated was derived from the engine rather than read from a published specification, and your owner's manual or door placard outranks it.
Catalog entry last updated 2026-08-30.