what is this in my test drum?

[xjdriver]

Ran my motor for a while in my test drum yesterday, let it sit overnight and now there is this strangr orange colored frothy oily stuff in the water, what is this?

 

[Daviet]

Re: what is this in my test drum?

Unburn't fuel mixture from your engine, not uncommon when you run an engine in a barrel.

 

[xjdriver]

Re: what is this in my test drum?

Ok thanks daviet. Now I will be able to sleep tonight.