You'd get much better answer's regaurding Motor / ESC help in the "Electric car / truck forum".

I know it is sprayed into the motor, and should come out the endbell. Im not sure where to spray it into exactly tho.
You basically "Flush it", untill the liquid's coming out clean. Seem's to me, The bearing's, ect would need regreased.

what's the direction's on the can say?