i suggest you use 10w-30 valvoline
GM 90 weight gear oil
5 quarts with the filter change.
5 quarts
a chevy camaro 1990
Yes.
5w 30
40 weight
1 year
The 1990 Camaro didn't have the 3.8, it had either a 3.1 V6 or 5.0 V8.
10w-30 will work fine.
You should use SYNTHETIC not REGULAR which I've learned from my own personal experience. Regular oil in a 2002 camaro only kills the oil pump. It's a rather expensive lesson to learn also. Don't let anyone tell you that putting regular or synthetic blend in your 2002 camaro is ok it's not.
what about it?