The recommended oil for an Oldsmobile Alero is SAE 5W-30 oil. If you live in a state that does not get freezing temperatures, 10W-30 is acceptable.
SAE 5w30
SAE 10w30 any major brand.
SAE 5W-30 any major brand conventional or synthetic oil. Use High Mileage oil if there is over 100,000 miles on the odometer.
5w30
The type of oil one can use in a 1993 Oldsmobile Cutlass is either 10 W 30 or 20w-50. This oil can be purchased at any auto parts store.
It depends on the climate but in the summer here in KY I use 10w 30 and the winter 10w 40 in my 00 Intrigue.
R-134
you would use 5W-30W have the same car
You can use any kind of 10w-40 oil for a nighthawk
The 1999 Oldsmobile can use any SAE certified motor oil. The manufacturer recommends 10W-30 weight motor oil. Extreme climates can use a heavier motor oil.
Baby oil
Most use Synthetic Oil.