That be just after WWI for TEL Panic. And it was a cheap way of tempering the "octane rating" as compaired to blending like they do today to tame Octane. Also it was a REAL big money maker for the "ETHYL" corporation stock holders. I posted a bunch about this in another thread recently but don't remember where it was.

You won't have any valve problems with modern fuels p.j. and there is really no need for those fuel additives, ever! They're like those weight loss diets, a total scam.
Denny Graham
Sandwich, IL


Denny G
Sandwich, IL