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
mkirsch wrote:
Used to be you only needed premium for these engines if you wanted the horsepower.
Going towing or drag racing? Fill up with premium.
Grocery shopping or a road trip? Regular was fine.
Must be things have changed.
We used to have an '84 Cadillac with that 4.1L aluminum V8 that would ping horribly unless you ran premium fuel. Back then premium was only a couple cents more so it wasn't a big deal.
They haven't, although it appears that "some" engines/tuning does not support or adjust timing as well for low octane.
What you're speaking of is old engines that aren't smart. And if they're built for premium, they'll tell you right away when they're not happy with the cheap booze!
