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Old 10-17-2011, 03:31 PM   #5
ford1
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Join Date: May 2010
Location: oroville ca.
Posts: 1,554
Default Re: Effects of Adding Lead Additive

lead was added in the 50's to stop pre ignition( ping or knock) in the newer high compression engines, the lead made the gas burn a little slower instead of going off with one fast explosion, slower flame travel keeps pushing the piston down the cylinder for a longer time
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