Had an oil change done recently on a 2012 ram 3500 with the cummins. Picked the truck up, drove the 3km home and checked the oil, it was as black as what was in it when I brought it there. I know it's a diesel and they turn the oil black fairly quickly, but that seemed really quick.
Both fords I've owned, a 6.4 and 6.7 would take about 1500km before it was as black as this stuff.
Both fords I've owned, a 6.4 and 6.7 would take about 1500km before it was as black as this stuff.