posted on Sep, 1 2005 @ 08:30 AM
Originally posted by SourGrapes
I'm outside Milwaukee, reg. unleaded is 3.49.
Anyone know the difference between premium and regular unleaded? My car only takes premium, so I'm wondering how much of a difference it would make
if I were to fill up with regular (if I can find a nozzle to fit).
does your car need premium due to an aftermarket performance chip?
or is this something that the owner's manual said?
if your car is chipped, then you'll be kind of SOL if you dont put premium in. this is because performance chips can actually use a more aggressive
timing with the spark plugs. with a lowwer octane fuel, it wont burn as easily with this timing, so you'll end up getting knocks and pings when you
drive. (this isnt good for your car at all).
if it's something that was said in the owner's manual you're probably going to have a lot more room to play here. this would depend on your car