Hey Monty,
Thanks again for the P5 engine. really loving it at the moment. Already done about 9-10 litters. Got it running perfect now with around 11 mins 45 secs run time.

A question for ya, with the silicone filled crank, you mentioned that its not advisable to use any after run oil in the engine. whats the reasoning behind this? How do i make sure the internal doesn't rust and all?

At the end of race days, i empty the tank, burn off remaining fuel in the engine, and unplug the fuel line.

I've been using after run oil in the past with a non filled crank in my other engines and they never let me down.

Im just a little concerned with my P5 without any oil in it to prevent rust.

Cheers.