The way I look at it is, if my motor's got 212k on it, and it's been run on 87 it's entire life, and it runs no differently the couple times I've put premium in it, I'm not gonna spend the extra cash for premium. Every car I've ever owned called for premium and I've never once had a fuel-related problem on any of them. Just my .02Best case, assuming it's stock or close, is you drive it for 21 years on 87 and nothing happens...just as it shouldn't.
You're wrong. Do more research on octane and its purpose.correct me if im wrong, but the higher the octane the slower the burn right? All higher octane does is prevent high compression engines, or a turboed engine from pre detonation, or in easier terms exploding before its suppose to, the higher octane prevents that by burning slower,
English subtitles please?ive been putting n 91 my shit is running like a champ but i have a fuel cut nd my supra is n/a wit a rebuild engine nd new fuel pump nd a new head gasket after running it for awhile i cant go past 3rpm it suck cuz i have to shift all the way to 5th wat u guys think it is
That line was enough to make me stop reading the rest of the thread. I'll look over it just to see and not miss things but, anyway...Running higher octane WILL cost you power if the car isn't tuned to make use of it.
I THOUGHT my owners manual (N/A supra) said premium, but it actually said not to run premium and I just read it wrong.Does the owners manual say what to run? I haven't had my Supra but for 2 weeks now and I don't really know what to put in it. Filled half the tank with mid and it seems to run fine, but if the owners manual says to use prem. then I want to run prem.
EXACTLY!! :3d_frown:I don't see the big deal about a $2 difference on a fill up between gas choices.
egr is a knock deterent in that it dilutes the oxygen fraction in the combustion chamberWhy would an EGR system affect octane necessity?