Hi There

Fuel for our models is most definitley hygroscopic - absorbs moisture from the air - mathanol is an alcohol and readily mixes with water - don't recommend for drinks though!!!!!

Personally I disagree about TDC and throttle open simply because dust can get into the engine. Being a marine/refrigeration engineer by profession and an avid model flyer I learned that if you leave it open it will get dusty and rust/corrode. And yup - aluminium does rust - 'cepting we call it oxidation/corrosion.

Same as a previous comment - I simply clean everything nice (so my car don't get oily/dirty), empty the fuel tank (so my car don't get oily/dirty) and pack everything nice n snug in it's storage bags/boxes!!!

Never had to change bearings from simply running an engine before.

rgds, Greg