So, still burning oil bad. 1 quart in 200 miles at 65mph w/ trailer, 1/4 quart in 200 miles at 60mph w/ trailer.
Exhaust pipe is mildly sooty, not oily. No smoke at startup, mild white smoke at 3000 rpm.
At 65mph code tripped saying it was too lean. Also, I've got oxygen sensor code before. I...