I have a PX200 with some mild porting and a 1mm plate under the barrel for more mid-range. It works really well, but better with Shell Optimax. Trouble is, there are not as many Shell stations as there used to be, so I use BP Ultimate if I can’t find Shell.
Has anyone used an octane booster or a fuel improver I can carry round with me for those times when the low fuel light comes on and there is no BP or Shell around?
STP won’t warrant their products in a 2-stroke engine - any ideas?