Low Lead Airplane Fuel

[ChronoGN]

My friend who works at the airport told me that people comes to buy Airplane Fuel for their car before drag racing at the track.
So, I want to try the fuel out and see if it makes any difference. But, will the Low Lead fuel damage my engine? It does say Unleaded Fuel only on the fuel cap....(but is that just because the low lead pollutes the air?)

[lord_gufi]

i would Not suggest this man, bad idea, this stuff can make a v8 zz4 knock every time it drives after that use, i know a guy that did it with a zz4 btw and he has to use 2 bottles of octane booster in it now just to keep it from knocking, it ran like a bat outa hell but i dunno of our v6's could handle the explosion, dont try it man ull be sorry when you pull that fast time but blow a head or other misc item

[phoenix64]

I fly out of my local airport, and I have seen guys using the 100LL in their street rods, but its not the octane level that screws us up its the lead content. Any gas like 100LL that is more pure, (no oxygen or ethanol) will make more power. Pilots would rather clear the fence at the end of the runway, than have good emissions, and not enough power.

[V6Bob]

Well, if you have emissions testing, lead will fry your cat = $$$.

It will also eat your spark plugs (no-lead is why plugs are rated for 100,000 miles) and, eventually, your exhaust (it's why Midas _used_ to be able to make a living off mufflers).

If you had a racing high compression motor (like 12:1), maybe. For a street car I can't see you getting much out of it.

[99Camaro99]

let's suppose I have a friend who is doing a whole engine build on his 3rd gen. If he wants to go for one last run at the track with his old motor, should I recommend he use this. He was considering a 250shot...no safety things...just the bottle with the nitrous running from inside the car through the firewall. Which one would be more fun?

[phoenix64]

it won't work with our fuel injection systems, it will mess them up. b/c of the lead content.

[camaro97]

also airplane fuel has antifreeze mixed in it... Dragsters do use it some but if u let it sit in your carb for an extended preioud of time u'll have a nice lil glycol green slime mess inside your holley....

matt

[pvtschultz]

The worst is that lead will destroy the oxygen sensing capabilities of the O2 sensors....bad idea. Old cars yes, computer cars...no.

[Triple W]

<blockquote>quote:</font><hr>Originally posted by camaro97:
also airplane fuel has antifreeze mixed in it... <hr></blockquote>

Well here is a subject I consider myself an expert on (been pumping Jet Fuel and every other kind of fuel in the Air Force for 5 years). First of all there are many kinds of "Airplane fuel" out there JP4, JP5, JP8, AVGAS, I could go on all night. The "antifreeze" you are referring to is called FSII or FIZZY is what we call it. It stands fo Fuels System Iceing Inhibbitor, which pretty much does the same job as antifreeze except FIZZY will eat the skin off your hand and give you cancer.
As for putting it in your car.....DON"T DO IT...unless you like your Pistons melted to your cylinder walls. Depending on what kind of fuel u use u would get varied results but all of them would screw your engine up. that is why it is called "Jet Fuel" and not car fuel. It just burns too hot. Not tryin to be a A$$ just thought I would shed some light on the subject.

[MustangEater8251]

Don't do it.

pretty much most furle injected v6s, are not made for it, hell some peopel argue, 93 octane is too much.

only way I see us running high octane liek 110, is if your are running alot of boost, extremly high compression, or your car is on fumes at the track, and you need a gallon of it to get to the gas station(not that it ever happened to me, but the $5 a gallon sucked)

btw, 110 octane, and my next 3 runs were either .01 slower or faster then what I was running that night, so pretty much no gain at all.

[MustangEater8251]

Don't do it.

pretty much most furle injected v6s, are not made for it, hell some peopel argue, 93 octane is too much.

only way I see us running high octane liek 110, is if your are running alot of boost, extremly high compression, or your car is on fumes at the track, and you need a gallon of it to get to the gas station(not that it ever happened to me, but the $5 a gallon sucked)

btw, 110 octane, and my next 3 runs were either .01 slower or faster then what I was running that night, so pretty much no gain at all.

[Speed Freak]

man just try to find a local cam2 dealer near you.
I'm lucky their is a station about 3 miles from my house.Cam2

[phoenix64]

Dude Its not jet fuel, thats jp4, 100LL (low lead) can be run in cars, just not our cars trust me I know a guy who uses it in his street rods.

[Triple W]

<blockquote>quote:</font><hr>Originally posted by phoenix64:
Dude Its not jet fuel, thats jp4, 100LL (low lead) can be run in cars, just not our cars trust me I know a guy who uses it in his street rods.<hr></blockquote>

Dude I agree with you can run it in street rods but not in our cars, but just cause you know a guy who does it doesn't mean it's safe for his engine. I was simply telling him not to run any "Aircraft Fuel", in this case AVGAS (100LL) in his car. All "AIrcraft Fuel" is made to burn hotter than regular Automotive Fuel, no matter what kind it is (Jet, AVGAS). That's why when you go to fill up your Fbod at the local gas station you don't see a 747, or propjob filling up at the pump beside you. If your friend has built his engine to withstand that kind of heat then he can probably get away with it. But I think we can both agree not to put it in our cars. Just tellin you what I know.
:D :D

[spitfire]

A carbed engine will run it just fine.. just not fuel inject!!!!