Oil additive f350. 7.3 2001
What is best oil additive to add to 7.3 with 171000 miles?
Forum Discussion
Why do you need to add anything. My 7.3 did fine for 13 years and was doing well when it went down the road on its way to a new home.
Shell Rotella dino every 5K miles.
Shell Rotella dino every 5K miles.
