Search results for query: *

I wouldn't have believed it until I read just 1 minute ago .Above 5000 feet elevation from what they say 84-85 octane rating works as well as the 87 we get at lower elevations . Now what I do remember from years ago in the high mountains around Vail was needing to lean the chainsaw out for it...

For what it's worth the original formula for gasoline was isooctane and heptane .100 octane would have been 100 percent isooctane. Todays gasoline use "Octane" rating as additives and antiknock compounds are in the mix today .Tetraethyl lead was an additive to lubricate the exhaust valves...