What is Correct Oil to Use So As Not to VOID the Warranty
What is the correct brand of oil to use? Regular conventional oil not the synthetic oil. The owner's manual says "Engine oil which meets GM standard GM6094Mand displays the American Petroleum Institute (API) certified for gasoline engines"
Sooo i can see the API stamp on popular brands of oil i.e Quaker, Mobil, Pennzoil etc but WTF is the GM6094M stamp...it's says in the manual if you don't use this then your warranty could be void!! those of you who do you own oil change or take it to a shop other than dealer..is your oil GM&*&*&*?