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100 low lead Avgas

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Old 09-21-2018, 12:36 PM
  #21  
juanvaldez
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Originally Posted by hungryhippo
I work with high volumes of avgas and sees what it does to metals, but maybe it's just a conspiracy.
My airplane has aluminum fuel tanks that are 50 years old. Should I be worried? Aviation fuel has a lot of lead. 100LL has about twice as much lead as the 80/87 my airplane was designed for and probably 10 times as much lead as the old leaded car gas. I spend a lot of time digging lead ***** out of the spark plugs (that cost $40/ea).

Last edited by juanvaldez; 09-21-2018 at 12:39 PM.
Old 09-21-2018, 08:48 PM
  #22  
hungryhippo
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You are right, I have no idea why it doesn't rust out aircraft equipment. And aircraft now does have lower lead levels than previously. I have just observed that it rusts out piping and storage tanks compared to unleaded gasoline which is minimal.
Old 09-21-2018, 09:36 PM
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JesC6Z
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Originally Posted by juanvaldez
My airplane has aluminum fuel tanks that are 50 years old. Should I be worried? Aviation fuel has a lot of lead. 100LL has about twice as much lead as the 80/87 my airplane was designed for and probably 10 times as much lead as the old leaded car gas. I spend a lot of time digging lead ***** out of the spark plugs (that cost $40/ea).
I actually researched the lead stuck in the spark plugs and you were not lying! Research also states the lead is not good for seats, valves and other components on the top valve train. Good talk CF



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