actually its Acidly neutral, the pH is just below 7 remember...

chemically speaking anything below 7 is acid anything over is basic. Only 7 is neutral..


Ed, I agree blah blah blah. there is no right way. There is only science. The science says that in order to prevent corrosion you must displace the stuff causing the corrosion with something neutral or slightly basic.

Many neat synthetic oils tend to be slightly acidic hence they require the addition of basic additives to neutralise acids in the oil on the metal parts. This is why almost no synthetic motor oil is actually fully synthetic but a blend of mineral and synthetic components. Also hence why in RC engines, a blend of synthetics and castor is ideal.

you could even simply run your rc fuel through the engine with the glow plug removed and your finger over the plug hole. The pumping action removes the burnt stuff and replaces it with unburned fuel and oil thats far more friendly to the engine.