2.9 & 3.6 are listed as Cold climate 5W/30 Moderate climate 10W/40 Hot climate 15W/50.
Use 10w-40 motorcycle or ATV oil for wet clutches.
I have an 88 celica and my top motor takes power steering fluid
Use whatever Mercedes Benz recommends. If you do not have an owners manual contact a MB dealer.
it is origanal oil
Use any brand of 5w30 motor oil.Brands are not important but changing the oil and keeping the oil filter changed every 3000 miles is very important.
motor oil
motor oil 10w30
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.
Yamalube motor oil.
A Briggs and Stratton 17.5 horsepower engine can use any type of small engine motor oil. A heavy duty motor oil is recommended.
5w40 about 1.3q
the motor if its over 200 thousand miles use 20/50 motor oil