i think i would rather have seperate fuels, as my engine is designed for 20% - 25% nitro and not 10%, besides... ive got a gallon of top wuality fuel i need to use up first, and im begining to lose interest in my HPI savage as theres not much you can do with it without spending money i havent got on upgrades...

Regarding to the fuel .. Im using 16%NM Fuel on my O.S 70II Engine.. Do you guys think its ok ?? It seems to run ok.

Hey Foamy, check out weston and model technics for their aero engine fuels in the UK (both have websites, weston do mail order, MT sell via Ripmax outlets) and take on board some of the other suggestions on this thread. Car engines are completely different to aero engines (revs and operating conditions being just two considerations). 15-20% oil for planes is the norm, that's just the way it is. Consider also that when a nitro car engine dies, the car stops, when a nitro plan engine stops the plane (potentially) crashes to earth (or hits a person in the head), so some different sensitivities being played out here.

Regards,
Andy

i thought an engine was an engine, but this thread has taught me otherwise

and also, i avoid Model Technics fuel (in my car) as it gunks up and is thicker than other fuels, but this may not be the case in aero fuel terms

i have used Byron fuels for a while now and i know that they are a good quality blend, so i will stick with byron for now