When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
why do you guys run premium if you dont have to? i understand the ones with the tunes but ive noticed absolutely no difference on my stock stang.
Some guys with stock GTs have noticed pinging while using 87 on the stock tune and use 89 to prevent it. Any higher than 89 on a stock tune is a little uneccessary though. More octane does not equal more horsepower. 93 Octane needs more compression or more timing to fully take advantage of it.
Back on topic: Regular is $1.98 and premium is $2.18. I use premium in my tuned sixxer.