Regular or premium
I know that Chevy recommends premium gas in the 6.2L engine. What do all of you out there use? Is using regular a bad idea?
Forum Discussion
I will say in the 2020 book it says 6.2 is premium. I have the 6.6 , and thats reguler. Its only the 6.2. Like above i had many gm trucks all were reguler. I atually called the dealership to make sure the 6.6 was regular. As the manual is a bit confusing for the 2500s.
