Originally Posted by
houston
Used to get rust on bearings and crank before I STOPPED running the fuel/oil out of the engine
Routine now is to dump excess fuel out of tank and let engine cool naturally, no aro !
Using byrons gen 2 fuels , pro driver or race 3000 have PLENTY of oil left in the crankcase and NO RUST
If you do prefer to run fuel out and use aro I recommend rbmods aro and plenty of it

????
Amazing. Here in Denmark every engine that runs Byron fuel will rust very quick - with or without running the engine dry. Those drivers who ran SideWinder in 2009 and 2010 didn't have that problem but I don't know if the new purple stuff has the same AFO effect.