Orange inside nitro engine?
 

When I took off my glow plug to look if it was still good, there was a layer of some orange looking liquid at the plug's bottom. I can also see it on top of the piston head by looking down the hole,and that is all i looked at. Can someone explain if this is good or bad. I'm running team losi nitrotane. The enigne is from the carsonmodelsport go kart.

RE: Orange inside nitro engine?
 

It's just the oil that's left over in the engine from running it.
If you don't run it for long periods of time after each run, I suggest buying after run oil to make sure nothings rusts etc

RE: Orange inside nitro engine?
 

the anti rust inhibitors and the dye used can stain the motor, but nitrotane is good fuel.