I am running approximately 10.5:1 compression in one of my vintage cars and have been advised by the engine builder that it would be good insurance to add a can of VP Racing Fuel Additive 2855 to each full tank of gas, even if it's premium, given the uneven quality of today's gasoline. I trust his advice as well as his technical and mechanical expertise although I wonder if his specific brand recommendation needs to be followed implicitly. VP is a trustworthy brand used nationwide by racers and builder of high- performance engines but are there other brands equally effective in raising octane ratings? I want to stay clear of the fake, snake-oil manufacturers with unsubstantiated claims and shaky reputations. Can anyone here provide some additional expert recommendation and advice.
Thank you in advance.
ric
Thank you in advance.
ric
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