Mambamonster

I have heard that o'donnel's oil can change the color of your piston rod but my buddy's new Axial engine is around the same age as my new Hyper .21 3port engine and he uses o'donnel too, the only problem is his piston rod isn't a dark orange color only mine is. My first thought was that my engine is shot, but then I called my LHS and they said its just been discolorated by the oil. Is this true?

McFly505

The oil/dye they mix in the fuel will dis-color the engine internals.

It is nothing to worry about.

Scott

Mambamonster

Are talking about the o'donnel fuel?

Paradoxmaker

As long as it's not burned black looking...Just being discolored shouldn't be a problem...

My buggy engine is bright yellow inside and ive also seen one that the piston and rod were bright green from the fuel being used....

Mambamonster

I know I seem to be real worried about this, its just that its my first nitro buggy and I really want it to last.

adam-69

My pistons are all yellow/orange on top. I run Duraglow fuel which has excess castor oil in it, this oil being yellow gets burned onto the engine and discolours it. It's nothing to worry about, so long as you keep that engine tuned nicely it'll run as long as you want!

Mambamonster

Thanks so much guys, its nice to know theres nothing wrong with it; today I ran it and it runs great, though now I need a new clutch bell, oh well might as well take the advantage of it and get a better one!