What do you do when 93 Octane is not Available?

[Tippy]

Just go to any auto supply and buy NOS octane booster, should add about 7-9 more octane even though it says 10.

Do you have data for this? Data I've seen would show about 1 point of octane higher, take 91 to 92 octane.

[Arne2]

Nothing higher than 91 here in Western Oregon, even the non-ethanol (which is tougher to find). My car had a 91 octane SW chip in it when I got it, which was installed by the PO in Washington. So I'm guessing no 93 in Washington state either.

[pksystems]

Originally Posted by Juggino

Just go to any auto supply and buy NOS octane booster, should add about 7-9 more octane even though it says 10.

Originally Posted by Tippy

Do you have data for this? Data I've seen would show about 1 point of octane higher, take 91 to 92 octane.

Toluene is the primary ingredient in those. Alot cheaper, and you need like 10% to have any effect on your gas. That's alot more then you get in one bottle.

I'm leaning towards adding ~5L of toluene before I fill up the tank in my turbo project, since most Canadian premium has such a low octane.

[darcher]

I run 91, occasionally 92 when I can find it but 91 is what's around town here and we've had no problems whatsoever. Don't waste your money on ocatane boosters. I do know some guys who are running some pretty exotic motors and go to the airport and buy 104!! but I'm running a stock 3.2 and do fine w/pump gas.