Eddie-- I use a standard solvent with a brass/bronze brush on the bore and pressure parts. For lubbing I use my mixture. Usually if my lub comes in contact with carbon build up it keeps it loose so it is easily removed. The automatic transmission fluid acts as a detergent and anti-friction agent not unlike your automatic transmission. The Marvel Miracle oil acts as a lubricate. Both of these oils do not jell like some greases and lubricate if they sit long. I just made a new batch of my "lub". The last batch lasted me from the mid 1990"s. Not to be vulgar but my fellow match shooter's use to call the concoction, Hillary's *lit Juice. LOL!!