Race fuel , race oils and rust.

[Ed Carpenter]

Originally Posted by Greg Reimer 7376

C-12 is a very dry fuel.It burns completely,leaving no moist oil film or residue behind.In a humid climate, it's possible that humidity in the atmosphere is rusting the bare metal surface of the cylinder wall. If a race motor is going to sit a few weeks or a month or so between uses,it's better to lubricate the walls and the rings by taking about six ounces of ATF in a little cup, starting the engine while the car is in the trailer, opening the throttle and simultaneously dumping the fluid down the carburetor.Big clouds of smoke are not necessary,just a puff of smoke. That will also make life easier on the top ring not having to cope with a dry start. Exhaust valve seats in the head can develop rust and cause issues sealing, too.This will prevent that,as well.

I use mystery oil......