First build ,cat D11

[avel]

I would change it. At least empty the tank, then run/cycle some more and empty again. The first time I ran the hydraulics on my loader for about an hour, not moving just setting speeds and mixes and lifting things, the oil came out pretty dark. All later oil changes it wasn't as dark. Yeah color isn't everything, but its never been as dark since, even after running for two hours in the sun.