MEXICOWANDERER wrote:
Myself, I have given up trying to outguess my car's ECU. But for a fact the small amount of lead in 100LL is the best "saver of exhaust valves and seat" in the business. For small 4-cycle motors.
Aviation fuel is far superior to commercial gasoline. The grades include a substantial percentage of alkylate, fewer "heavy ends" and strict quality control. But the lead content means DEATH to automotive emission controlled sensors and the catalytic muffler.
But commodities brokers are pulling their hair out at the lost potential of fattened income because Mexican gasoline does not contain cattle feed. Just think! Another vacation palace forfeited because commodities revenue has not been maximized.
Baaaaaaaaaaaaaa!
I am an A&P with Inspection Authorization, and a pilot, I overhaul the 0-200 and 0-300 engines found in Cessna 150 and early 172s.
I'll tell ya that the only good thing the Tetraethyl Lead does for us is the octane boost it gives us.
Lead chokes the valve guides causing the valve to stick in the guides, it does nothing to save the valve or it's seats.
You can see my work by following the "Fairchild Flyer on You Tube.
Oil pressure check of the Warner 165here is the first start of the Warner