Hello gang,

I am new to on road nitro but I have raced nitro off road. I was putting some after run oil in my Novarossi 353 Race.12 2009 3-Port .12 engine, when a fellow racer said that particular motor may not use after run oil. He mentioned something about adding some other additive. I have heard before how after run can be harmful to some nitro motors because they may have some sort of "coating" inside and that I may have to use something else.

Any hints as to what this additive is??