Visit The Dirt Forum for More Information

Author Topic:   fuel
P5Racing
Member
posted September 30, 2002 03:21 PM
I'm running airplane fuel 114 oct., going to pump gas that is 93 oct.. Is it ok to mix them. WE are doing this becouse airplane fuel is just to high. We though running 4gal. of 114 oct.,and 8 gal. of pump gas that's 93 oct.


outlawstock17
Member
posted September 30, 2002 04:12 PM
yeah, you can mix them.


P5Racing
Member
posted September 30, 2002 04:44 PM
what would the octane if i mix 8 gal pump gas 4 gal. airpane gas. wecan't use any octane boost.


outlawstock17
Member
posted September 30, 2002 05:41 PM
i'm not 100% sure on this, but you're basically mixing them 2 to 1. this is how i figure it, but i could be wrong.......114 + 93 + 93 = 300. 300 divided by 3 is 100. i'm going to say that your octane with the 2 to 1 mix in going to be 100.


Geffy95x
Member
posted October 01, 2002 12:49 AM
Just do what everyone else does and put your octane boost in at the gas station or at home.


outlawstock17
Member
posted October 01, 2002 03:43 PM
i never liked octane booster. it always shows up in ugly, gummy deposits in the carburetor bowls.


Geffy95x
Member
posted October 02, 2002 10:21 AM
Never had that problem ! ?


Geffy95x
Member
posted October 02, 2002 10:22 AM
Your suposed to mix it with gas!!!!!!!


outlawstock17
Member
posted October 02, 2002 12:53 PM
man.......geffy, i'm glad you straightened me up.....all this time i was mixing it with water and putting it in the radiator......geez, i'm sorry we disagree.


rico 08
Member
posted October 02, 2002 12:57 PM
av fuel too high? it has to be cheaper than racetrack fuel at 4.85 gal.just a thought.


dirtbuster
Member
posted October 02, 2002 02:29 PM
What kind of car are you running this in?

Why not just use race gas instead of Aviation fuel?

I have read and been told several times never too run av fuel in a car. I cant remember the exact reasons why but it had to do with the fact that aviation gas is made to run at high elevations where there is less oxygen. When you run it at lower elevations where there is more oxygen then you create a lean condition and cause all kinds of internal engine problems.

I know you have been running it but i would still recommend against it. Instead I would start using or mixing race gas with pump gas if you want to cheapen it up. I cant imagine av fuel being that much cheaper than race fuel.

Just my opinion.

mwmod34
Member
posted October 02, 2002 05:59 PM
av fuel has what i would call anti freeze in it to keep it from icing at altitude so it tends to create more heat. just what we need!! mixing race fuel and premium pump gas seams to be the best between high octane and burn rate


racer17j
Member
posted October 02, 2002 06:47 PM
buster you might have misunderstood what you were told i agree never run it in a street car but racers can adjust for a lean condition. i used to run av with mystery oil and then mix in some 89 ethanol when the pockets got mt never had a problem. this year i have ran only the ethanol all year long and actully seamed to be better off. i know my wallet is a little heavier for it anyway lol


dirtbuster
Member
posted October 03, 2002 10:56 AM
racer17j

Your right I do not recall the exact conversation i had about av gas, and i am not saying it wont burn, i just dont think it is the best thing to do.

What i am saying is why try to make something designed to work several thousand feet in the air work on the track, when there are fuels made just for auto racing. I know for a fact there are different additives in av gas and race fuel so rather that add the necessary ones to av gas why not buy race fuel thats what it is made for.

If you are running only the 89 ethanol then it sounds like you didnt need the av gas to start with. There are times when too much octane can hurt performance. Only use what you need or maybe a little extra to be safe but if you are running a 9:1 engine you dont need 110 octane.

Back to the Archives