bro ! how about Qmax products ?:hmmmm:those fuel-saver-product, surbo, rocket-booster-fuel, magnets-over-fuel-line never fail to find suckers.......
Case in point: Some claimed X1R gives better milleage, some say X1R made their engine kong.......So unker so believe X1R they even used it in their lawn mover engine
oh, well, this sorta debate never ends...
For best mileage, the best (and the simplest) thing to do is having a gentle right foot....