ORIGINAL: XJet
Yes, I actually break my engines in using 18% oil and switch to 12% after a few tanks full.
The extra oil *is* helpful during the break-in process as it ensures that there's a huge margin of additional protection available to allow for the tight-spots that will inevitably exist when an engine is brand-new.
I've noticed no loss of compression after changing to 12% from 18%.
Thanks for your tips, XJet :-)
ORIGINAL: rexracer
Interesting discussion. i felt the need to point out one thing that was said concerning motorcycle 2 strokes vs rc cars. When you get off the gas in an rc car (decell) the engine is NOT spinning at high rpm with less oil. As soon as you get off the gas, the centrifical clutch releases and the engine speed drops to somewhere near idle.
Hey rexracer.
That is also what I remembered, when I drove RC-cars. If the clutch were "on" after the gas was taken of, the car would brake, and it dosn't.