l8t apex

Id venture to say that since peoples lives are at risk and the fact the airplanes do see high strain/loads and all weather and different temps immediatly during flight that it burns in all parameters. I dont believe gasoline engineered for that dynamic environment would not perform to the utmost.

Taxes ....well tell them give us a refund on all the boat gas we paid for, 4 wheelers and other stuff over the years that we paid road taxes on and that stuff is not used on the highways. The Feds come out ahead.

The size and compresion of the 185 pistons are gynormous compare to car.

Limited performance gas is one thing pilots dont want.

94touring

[quote name='l8t apex' date='Jun 5 2005, 12:55 PM']Id venture to say that since peoples lives are at risk and the fact the airplanes do see high strain/loads and all weather and different temps immediatly during flight that it burns in all parameters. I dont believe gasoline engineered for that dynamic environment would not perform to the utmost.

Taxes ....well tell them give us a refund on all the boat gas we paid for, 4 wheelers and other stuff over the years that we paid road taxes on and that stuff is not used on the highways. The Feds come out ahead.

The size and compresion of the 185 pistons are gynormous compare to car.

Limited performance gas is one thing pilots dont want.


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Well thats what I was thinking.

94touring

I have some technical data for those of you following this.



100ll has some fuel additives to get better anti-detonation characteristics. Tetraethyl lead, a heavy oily poisonous liquid is added. Tetraethyl lead allows engines to develope more power without detonation, but can lead to problems with spark plug lead fouling and sticking valves. This is typically found is regular leaded gas, which uses 4.6ml of lead compared to 2ml of lead in low lead AV gas. The benifit of using LL is it still provides enough lubrication and at the same time the lead content is low enough that spark plug fouling and valve sticking isn't a major problem. Ethylen dibromide is another agent added to this fuel which is a scavenging agent to help clean out the lead deposits that may form. This is the part that causes your cats to clog.

afterburn27

leaded gasoline will also ruin O2 sensors

94touring

[quote name='afterburn27' date='Jun 7 2005, 09:06 AM']leaded gasoline will also ruin O2 sensors


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I'd venture to say thats not too big a problem either. We have EGT gauges on our planes and they seem to be fine. It comes down to the amount of lead deposits you accumulate, low lead and the bromide agent pretty much fixes that concern for me.

afterburn27

[quote name='94touring' date='Jun 7 2005, 09:10 AM']I'd venture to say thats not too big a problem either. We have EGT gauges on our planes and they seem to be fine. It comes down to the amount of lead deposits you accumulate, low lead and the bromide agent pretty much fixes that concern for me.


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Yeah, I thought about the EGT sensors too, I was just going by what I have read on the web and heard from the locals. Never tried leaded gas myself, but I don't think I'd run my wideband sensor with it for extended periods of time just to be safe.

94touring

I hear ya. From what I understand widebands foul fairly quickly on pump gas anyhow. I have had an 02 sensor go bad on me before, but it was probably 100k miles old.