Can a 1996 Seville STS which is high performance be adjusted to use Reg. Gas instead of high test as stated in users manual
Wednesday, April 23rd, 2008 AT 6:03 PM
1 Reply
BLACKOP555
MECHANIC
10,371 POSTS
You cant adjust the engine if thats what you mean, if you want to run regular I would use regular and see how it runs, if it starts acting up and not running right I would use octane booster to see, if not switch back to premium.
I used to drive my mustang over 30 miles per day on regular gas when called for high, I just used fuel injector cleaner more often.