Originally Posted by
hustler777
if i'm not mistaken (which is rare, but it does happen...) the reason for the lack of smoke in the worlds was due to lack of oil in the fuel....i know when i made the change from byrons race 30/11 to purple sidewinder (30/6? or 30/7? nobody has been able to tell me for sure...just don't use the sidewinder unless your motor is 99% completely broken in due to the lack of oil!!!) the smoke trail went from nice and smooth to almost non-existant...and i had to lean a couple hours on the bottom and 1 on the top of my B5....so there's ya another milage tip....a low oil fuel will yeild slightly better run times due to being able to lean it more...
some of the fuels being made troday are NOT being made for engine longevity but rather performance at any cost . they are using high synthetic to castor oil ratios and some even use 100% synthetic oils which requires a drastically leaner needle setting than other fuels with some natural castor oil.
another thing , i get engines in here that run many different fuels so i get to see first hand what how much of what kind of fuel does what or doesnt do what to the internals of your micromotor . from what i have seen , i have deduced that 100% synthetic oil fuel is NOT good for your engine , i repeat NOT good for your engine !!!

i know of 3 companies at least that use full synthetic oils in their fuel .
so i dont know about you but i have to purchase my engines , i am not 100% sponsored by anybody but myself!!

and i would like to protect my engines

i use byrons 30/9 pro driver fuel , rbmods after run oil ,kyosho air filter oil , it seems to work and work well