Long story short - I have a 2004 F350 with the 6.0 Powerstroke. I have two mechanics fighting over what is wrong with it. There is an unknown substance in the radiator. The cap is a bit milky, like oil, but not frothy. It smells like a petroleum product, but neither I, nor my mechanic can tell you what. Not motor oil, and not diesel fuel. It's kind of a yellow/brown color but if you look at it in the right light it looks green! Does not look like Ford or Chevy coolant.
One of the mechanics claims this is algae. In the radiator? Is that possible? I've never heard of that before. Any other guesses as to what this could be?
One of the mechanics claims this is algae. In the radiator? Is that possible? I've never heard of that before. Any other guesses as to what this could be?