F1 fuel vs road car fuel

[buh_buh]

Think there's much of a difference? I thought so.

[benyl]

That is a nice advert for Shell... haha

[Redlined_8000]

No pre detonation?

[RickDaTuner]

Originally posted by Redlined_8000
No pre detonation?

Pre Ignition, or Detonation...


F1 engines due to their rotational speed tend to use relatively late ignition and valve timing, when this is taken into account its gives you a better picture of why you can run pump fuel in F1 engines.

Also the lower the octane, the greater the power potential from the fuel, if F1 engines were to use 100, or 110, I would assume that they would use a far greater amount of fuel to power the cars, and meet the distance requirements.

[buh_buh]

Haha, yeah that was pretty much a Shell advertisement.
Alonso actually says in the video top speed is better with pump fuel, where the difference lies is in acceleration.

[davesparky6]

I heard somewhere that F1 rules require that the fuel used must be 98% the same as pump gas.

[rage2]

Originally posted by davesparky6
I heard somewhere that F1 rules require that the fuel used must be 98% the same as pump gas.

In chemical composition. Most of the stuff that they tweak in F1 fuels is to improve specific gravity, lubrication, etc.

[qcp1]

you have to also remember in italy the lowest octane pump gas is 95 or as they call it senza pb. i had great confusion pumping gas for the first time crossing in from france when we were there in march. their supersenza i think is 103 octane.

edit" the video at 0:03 shows him pumping senza pb v power which has an octane rating of 98.