Quote:
Originally Posted by Ciao
Zero (0) is impossible. Despite the belief that unleaded contains no lead, there is an unknown government regulation allows unleaded gas to contain lead to be added intentionally to gasoline, but does permit unleaded gasoline for motor vehicles to contain up to .05 grams of lead per gallon.
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Your UOA should be zero. That's what I am talking about about, not the level of lead in your unleaded fuel. If you use race gas, your UOA will show 1-2 ppm, or higher, depending how much/often you run the race gas.