5w30 synthetic blend motor oil 4.7 qts.
Use SAE 5w30 Full Synthetic.
It takes between 8 and 9 Quarts of Synthetic 5W30 motor oil. Make sure you keep it in synthetic! Average cost of this varies by oil shop but is normally in the range of $65-90
Yes, you can not only switch you can mix synthetic with conventional oil.
use synthetic every 7500.
synthetic Castrol 5W20
If you mean 5w20 synthetic the answer is NO. Pontiac recommends SAE 10w30 weight oil in Synthetic or Conventional. Use exactly that weight.
Anywrefrom 4.5 to 5.5
If its a 3.6 that would hold 6 quarts of oil. Preferably synthetic.
No, I would not recommend using synthetic in an engine this old. Use a good 10w40 conventional oil.
You can use synthetic, synthetic blend, or conventional oil. It is your choice.
Pontiac recommends SAE 5w30 conventional or synthetic. Use nothing else. Thanks Clay.