If you mean Automatic Transmission fluid??

I would try using standard After Run Oil.

This is recommended for Nitro engines.

Also, Maybe you can clean the glow plug off with a little nitro spray.

Be careful. Don't use the glow igniter right after. Let the glow plug dry

before igniting. If it doesn't work, get another glow plug.



Also, as some one said, clean out the excess ATF. I might stay away from

ATF in the engine.