Best Fuel
The best fuel IMO is one that delivers protection ( Coating the Piston) and clears well ( smooth revs from low to high RPM). To be honest it can be quite difficult to source the right mixture of protection and performance. Sometimes you have to just settle on a brand possibly due to its availability and make it work eg. adding oil. At the end of the day if youre not blowing plugs, running lean and the motor shos signs of protection.....that is the best fuel!!!