James McMahonKartingIsLifeFounder
Most of the racing fuels used in karting in the US contain lead. It definitely helps reduce wear as it acts as a dry lubricant for bearings, cylinder, piston etc. It’s also a neurotoxin, so there’s that too.
I should add that Sunoco 110 had a formulation change a little over a year ago that resulted in it being no longer recommended for two strokes. That information is buried on Facebook somewhere unfortunately.
What’s the basis of pump fuel vs race fuel jetting difference? Specific gravity or something else?https://forums.kartpulse.com/t/sunoco-standard-110-race-fuel-vs-vp-110-racing-fuel/5979/23