2018 F350 6.7 ccsb
I do oil changes every 5-7000km with Rotella 5w40 t6. Truck has been tuned/fully deleted with a single 50hp tune for 45,000km. It has ran flawlessly but the oil change indicator seems to have developed a life of its own. Changed my oil at 82000km and the oil change indicator showed up after only 4500km of mild use on the highway. Oil appeared to still have lots of life in it but I changed it anyway. I reset the indicator but it appeared again after 50km of use. Drained oil and it looked perfect aside from a bit of soot but no sign of any diesel/coolant dillusion. Put more fresh oil in and it went off again. This happened once before around 45,000km after deleting it and I went through the same process but it went away on it's own untill now. I am positive the oil life monitor system isn't working correctly and I was if anyone has had similar issues?