10W30, 10W40 and in the summer time 20W50 is okay. That engine does not have a roller valve train in it. So these weights of oil will not hurt it. Just be sure to use a a/c delco oil filter every time.
what type of oil is recommended for a 2008 chevy tahoe
what type of transmission does a 2005 chevy tahoe have
dex-coo 50/50
what type of gear oil to use in 2003 chevy tahoe 4wd
That is a 4L60E
5w 30
It has the 4L60E in it.
H11
5w30 only
SAE 10w30
87 octane
the best would be unleaded