check this out...i bought this matrix tr arena truggy back in 2006 & i havent used it for 9yrs (shameful i know), anyway, i dropped ARO in it down the glow plug & cranked it over a few times & pretty much left it as is in a moisture environment.

today i decided to pull apart the engine & here are the pics - i didnt wipe down or clean the engine - no rust or corrosion whatsoever which i find amazing!

AFO obviously works