I have a 2010 isx too. I was told Cummins has a piston design change for our motors. I waw also told they are picking up the tab for parts and...
Not sure if your question was answered but Cummins is aware of the oil consumption issue. A few months ago they made a new piston design change to...
I have a 2010 ISX and am experiencing oil consumption too. Its not the brand of oil or the way you drive. Cummins knows there are problems and...