Join Date: Dec 2008
Thanked 2 Times in 1 Post
My situation is, i only use the truck for pulling about 14,500 and it does it well. But it turns the oil black almost immediately, and i thought after break in, it would protect the motor a little more to run syn, and i personally would never try to go 10,000 on a oil change, the way i pull it. I have a 7.3 that will go 3000 miles and the oil is still clear, but i don't pull it hard at all. Guess it is all that extra unburned diesel and soot that turns the oil black so quickly.