Not Ranked
Bret,
If you are still using the original valves, I would say yes. If they have been changed to newer ones, then the lead should not be needed.
The lead ( anti-knock coumpound) served two functions in gasoline. One was to increase octane and the other was to lubricate the valves. I heard that when unleaded gas first started being used (1975) the car companies added valve rotaters to solve this problem.
I was told that it was 10 times more flamable than gas. I know that it certain building we even had to use brass tools to avoid any chance of causing a spark.
Bud
|