100 Octane gas

[CosmicGrooves]

Anyone ever run the 100 octane gas or use octane booster? I normally fill up with 93 octane and the car runs better on it. How would it run on 100?

[Midias]

Probably the same as ever unless you are pulling some serious boost.

[DatSRBoi]

^^^^
+ in most case it can actually hurt your car.

[Mole]

i felt a difference when my car was in full effect.

[1gSE]

yeah i don't think 100 in a daily driven car would do any good, unless boosted, or high compression. And from what i've been reading about octane boosters....they don't do jack

[JvR]

In the Netherlands (europe) were i live, the lowest octane is 95 and the highest 98. I always take 98....just incase, but i don't feel any differents with 95.
When i go on vacation in Germany/Italy, i sometimes must use 91/93 octane.....then the car drives like crap (but i drive with a S/C and it is a hot day....i hope on vacation )

So i think higher then 95, makes no differents. Maybe when you driving on high boost then it will....but then your car needs a major tune up (lower compression etc.)

ps: I have a bi fuel system, start on petrol and drive on LPG with 110 octane.....i still sometimes have knocks on 110 octane.

[Black Bob]

yeah i don't think 100 in a daily driven car would do any good, unless boosted, or high compression. And from what i've been reading about octane boosters....they don't do jack

Agreed. I think the rugged programming in our engines modules may very well compensate for it but I don't think it would be efficient or smooth running. Also, I'd be worried about my insurance and/or warranty covering any damages in case I'm wrong.

[Camry Racing]

I once used C116 in my camry when going to the drag strip finished damaging my spark plugs platinum one in those times

[NeFaRiOuS_SLE]

In the Netherlands (europe) were i live, the lowest octane is 95 and the highest 98. I always take 98....just incase, but i don't feel any differents with 95.
When i go on vacation in Germany/Italy, i sometimes must use 91/93 octane.....then the car drives like crap (but i drive with a S/C and it is a hot day....i hope on vacation )

So i think higher then 95, makes no differents. Maybe when you driving on high boost then it will....but then your car needs a major tune up (lower compression etc.)

ps: I have a bi fuel system, start on petrol and drive on LPG with 110 octane.....i still sometimes have knocks on 110 octane.

Well, just like how you use KM and we use miles, we have a different fuel rating system here; we use Anti-Knock Index (AKI), but European countries use Research Octane Number (RON), so in reality your 92 RON is our 87 AKI.

[JvR]

you are right :

We drive in the Netherlands min. ron 95 -98 =
( RON Octane Rating x 0.95 = AKI Octane Rating )
95x0.95=90.3 aki
98x0.95=93 aki

And LPG...what i drive

105/110x0.95=99.75/104.5 aki

I hope you are happy now

[BChad200]

higher octane=hotter burning=more power=shorter engine life if you car isn't designed for it.

[crispone]

I use 110.




-crisp

[Midias]

higher octane=hotter burning=more power=shorter engine life if you car isn't designed for it.

What? Octane has nothing to do with the energy content of the fuel or how hot it burns. Higher octane gas is more resistant to detonation mostly because it has less heptane in it which does not like to be compressed. Higher octane gas does not affect the A/F mixture at all and actually does not detonate as well as 87 under compression. The performance gain many V6 owners feel with the 93 is because of the ECU allowing timing to be advanced much farther because the engine is less prone to knocking with 93 octane. If you look in the owners manual it stated 87 can be used for the 1mz but the car will perform better on 91 or higher.

[Black Bob]

^^^Yeah, but if the ECU changes the timing doesn't it have to change the air-fuel mixture also? If the ECU is always trying to attain optimal efficiency I can't see it adding the same air-fuel stoichiometry for different octanes, brands and winter-blends. As far as better engine performance goes I still do not personally feel/see any noticeable difference in performance between 87 octane and 93 octane (I'm stock) in my Solara. I'm not speaking for others but I feel the performance jump is only a tenth of a percent on paper but exponentially huge in my wallet. (I support unwed mothers, ya know!)

[rewmomi]

well its more like the more fuel put into the engine has to do with the a/f. But you would need bigger injectors for that in the first place. Better fuel does not increase nor decrease a/f mixture. Now if your running a cai and you have not programmed your ecu like me than all that air will do nothing to improve hp or milage for that matter....now im off topic but yeah u got the point.