Is it true that if you put in premium gas that your car will run faster because it has high octane then unleaded gas. Also does premium gas actually get you better gas mileage or it just for certain cars?
Is This A Myth Or Is It True?
- Thread starter edhgreatone
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not true. its a real long explain, but here are the cliff's notes: octane is fuel resistance to burn, lower octane=faster burn, high octane=slow burn. higher performance engines need higher octane to stock the fuel from igniting itself (predetonation) which pings, or knocks, and will damage an engine over time. our cars dont need this slow burn. i forget what magazine (no, not an import magazine) did a test, but they tested a variey of cars on the dyno to check output from octanes. one vehicle was a honda accord. well it actually made LESS horsepower when it was run on premium than it did on the regular which it was designed to run on. where-as the bmw made more power on premium b/c that is what it is designed for, it was knocking on regualar and the computer retarded timing to stop the knock.
what the hell is that ^^^^^^ up that learn how to talk.....
Depends on your CR sence i have the b18c1 swap with a 10:1 ratio I "recommended by honda" must use 91+ octain in order not to have detonation.But as far as the d16 motors go I am sure the lower octain will be ok sence the CR's are a bit lower,but higher the octain the cleaner it burns and is healthier for your engine.Why do you think they sell 100+ octain at the track ?-because some car require it plus iff you put like 110 octain in your car at the track I promise your E.T. will be atleast a little better !and you can quote me on that !
^wtf? lolOriginally posted by edhgreatone
what the hell is that ^^^^^^ up that learn how to talk.....
anfrey
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because several track cars require it. on my d16 i can run regular with no detonation. . .Originally posted by HybridTuner
Why do you think they sell 100+ octain at the track ?
Did you actually read my whole post ?...see the part about the D16's ?-s**t people read !Originally posted by anfrey
because several track cars require it. on my d16 i can run regular with no detonation. . .
anfrey
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uhhh i did read, and i was backig up your statement. quit being so defensive. and maybe you should've used person rather than people since you were obviously referring to me, and nobody else. besides, you editted your post and added the extra stuff after the question mark after i posted. don't take me for an idiot.
yea higher octane is so much better for your car, my dad told me that back in the day when they had like 110 at the gas station, there exhuasts wouldnt be black and sooty like they are today, they stayed realy clean due to it burning so much cleaner.
but you gotta remember that older cars ran on leaded fuel, where modern cars run on unleaded. and an fyi, racing fuel is leaded. so most people think they are running better on VP, are really only hurting their valve seats and other components modernized to run unleaded. now premium gas is cleaner(forget where i read it, but it was tested and proven that some companies, mobil for sure, have injector cleaner in premium) but you also gotta realize that an engine not designed for premium will not run as good(and by good i mean mechanical wise, not how clean) take a car made to run on 87, put 100 in it, and under the right conditions, it wont start up as easy as it will on 87 (ive had lagging starts with as low as 94)
Wrong, partially anyway. Octane has nothing to do with how clean it burns and it is not necessarily better for your engine. Once again: Octane is an equation to measure gasoline's resistance to ignition from compression. Your car will run cleanest on the lowest octane tolerable by your engine with out any preignition. From experience, with 110 octane with 12:1 compression ratio in my Suzuki, the damn thing would hardly run. It was actually a lot faster on plain old 93 octaneOriginally posted by HybridTuner
Depends on your CR sence i have the b18c1 swap with a 10:1 ratio I "recommended by honda" must use 91+ octain in order not to have detonation.But as far as the d16 motors go I am sure the lower octain will be ok sence the CR's are a bit lower,but higher the octain the cleaner it burns and is healthier for your engine.Why do you think they sell 100+ octain at the track ?-because some car require it plus iff you put like 110 octain in your car at the track I promise your E.T. will be atleast a little better !and you can quote me on that !
for all the verbal pillage & technical chatter, has this man's question really been answered?
Answer: Depends on the application. As Beelzebubba (or what ever his name) just said, its all about finding the lowest octane that can be burned with no knocking. High octane at the track is for the high compression turbo cars that require a high octane to stop knocking. (which is why many people say don't increase your compresion higher then 12:1 or else you have to get an octane not sold at gas pumps) This is also why their are turbo sparkplugs that you need to get. They give a lower temp spark allowing the fuel to burn w/ less chance of knocking (in effect allowing a lower octane fuel to be used).
In short, if your engine is does not knock don't get a higher octane.
In short, if your engine is does not knock don't get a higher octane.
Jas0n
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that's nice info bro!!!!Originally posted by Bangin' HB
not true. its a real long explain, but here are the cliff's notes: octane is fuel resistance to burn, lower octane=faster burn, high octane=slow burn. higher performance engines need higher octane to stock the fuel from igniting itself (predetonation) which pings, or knocks, and will damage an engine over time. our cars dont need this slow burn. i forget what magazine (no, not an import magazine) did a test, but they tested a variey of cars on the dyno to check output from octanes. one vehicle was a honda accord. well it actually made LESS horsepower when it was run on premium than it did on the regular which it was designed to run on. where-as the bmw made more power on premium b/c that is what it is designed for, it was knocking on regualar and the computer retarded timing to stop the knock.