Pontiac 1993 Grand Am Owner's Manual page 211

Service & Appearance Care
Engine Oil
(CONTI
Just fill it enough to put the level
somewhere in the proper operating
range. Push the dipstick all the way
back in when you're through.
2.3L
Quad OHC and Quad
4:
Adding
Engine Oil
3300 V6: Adding Engine 0 1 1
What Kind of Oil to Use
Look for Three Things:
SG
"SG" must be on the oil container,
either by itself or combined with other
quality designations, such as
"SG/CC," "SG/CD," "SF, SG, CC,"
etc. These letters show American
Petroleum Institute (API) levels of
quality.
m m . 210