Octane help

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**Canuck** · #1 07-27-2017, 05:34 PM

Get Aviation fuel, its not hard to get, all small airports and flying clubs have it. I just bought 10 gallons and it was only 10% more than the best pump gas around here.

Lee Stewart · #2 07-27-2017, 06:47 PM

Quote:

Originally Posted by Canuck

Get Aviation fuel, its not hard to get, all small airports and flying clubs have it. I just bought 10 gallons and it was only 10% more than the best pump gas around here.

"AvGas LL100 stands for "Low Lead 100 Octane". TEL (Tetra-ethyl-lead) is added to raise the octane. When used in a motor vehicle this fuel will leave a lot of lead deposits in the motor. 100LL has a high lead content (0.5 grams per litre), even higher than leaded race fuels. The deposits left when TEL (lead) is burned are corrosive and damaging to valves, valve guides, valve seats and cylinder heads."

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