You can use nearly any weight oil 10 w 30 and up , but synthetic is not recommended for an auto that old.
Dexron 3
what weight of oil do i use in my 1994 Chevy astro all wheel drive differential and transfer case
My Chevy van has the 4.3l v6 in it, and 5w-30 is what is recommended.
chain
Make: Chevy Model: ?? Year: ?? Engine: ??
the oil capacity varies form 4.5 quarts to 4.75 quarts depending on the filter you use
Yes
5w30
It depends on your climate but in most cases a 5W-30 is what it calls for.
4.5 gallons
maintenance required
in the gas tank