changed fuel filter =exhaust smells cleaner

[hdjeff]

sounds funny, but i've noticed when i change my fuel filter, the exhaust smells cleaner, not so oily smelling. i only had about 3k on this filter but i've been running the truck 10-14 hours a day plowing snow. nothing major, just thought it was interesting.

 

[Crumm]

Maybe the new filter is filtering out the smell