iDChuck,
I use CRC Electronic Cleaner aerosol to clean my motors, and have for a long time! It's pretty easy to find and cheaper than rc motor spray. I also use Bachmans EZ lube on the comm, and it really helps with power put down by the motor. It doesn't gum up like the Comm Drops I used as a kid,and it only takes 1 drop, so the small bottle lasts and lasts!