2 issues with a deleted dpf straight piped LML. Still have EGR attached but not hooked up. Truck is new to me. First problem happened yesterday and today starting after siting all night it was a rough start.
second problem is I was roughly 1.5 quarts low and have oil on the front differential and skid plate. Seems to be more prevalent on the driver side? Where is the oil cooler. Could this be EGR related? No oil on top of engine i.e. Turbo etc. oil nor towards front end of truck could it be blowing back onto oil pan and differential?