05 cummins with 205k burning oil
I just bought a 05 cummins in TX and changed the oil right awya to Mobil 1 5W-40 synthtic and it appears to be using oil. I drove the truck 1,500 mile to Green Bay, WI towing a car on a dolly behind me and it used 3 quarts. Also, when I check the oil, the dipstick is solid at the bottom and then get spotty at the top. I just drove 1,000 miles round trip to Ohio and it burned another 3 quarts pulling nothing. Should I be worried?
It does not smell like diesel. How should I diagnose the situation?
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It does seem to be getting bad gas mileage. 10 when towing and 13 when not.
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It does seem to be getting bad gas mileage. 10 when towing and 13 when not.
Last edited by mmanderf; Jul 14, 2012 at 10:10 PM. Reason: Automerged Doublepost
Or have a shop do it.
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