blacksmoke.r.us
Member
I bought a 2011 F350 with a 6.7 with 50k on it, I worked into the deal a full service that changed all the fluids and filters. I noticed the typewriter noise the first night I brought it home. At 55k I changed the oil using delo 5w40, hoping that it would make a difference being that the ford dealership put 10w30 in it when they seviced the truck previously. To my disappointment I noticed the typewriter noise immediately when I first fired it up after the delo oil change. After 1000 miles or so the noise went away. I had been reading about the problem and thought it was something I was going to have to live with. Now @ 60k I changed the oil again and used mobile 1 5w40. To my surprise the noise is completely gone! The truck idles smother and is quiter under load. I don't know if this will work for everybody and I know it's an expensive oil change, but if the typewriter noise bothers others as it did me then its worth a try.
