i have a 0.s. 40 la max and im using 10% nitro the fuel is the tower power airplane fuel how do i know if the engine has ample lubrication? im confused with castor oil and synthetic what do you recomend the transision from idle to full throttle is very good no hesitation at all it idels at about 1,000 rpm.need a little help with what fuel to use or recomend.[:-]