2006 f350 6.0. has been in the shop for egr cooler replacement twice this year. had the heads pulled one of those times. and had the oil cooler replaced once about three months ago. last year it had the egr cooler replaced twice. all under warranty until now. 117000 miles. on the way home i had noticed the past week when i went to pass someone at high rpm,s it had a miss. about 4 miles from the house the mil came on. stopped at autozone and had them check it. p2290 the paper said dirty or wrong filter, icp sensor, and a few other things. took it across the street to jiffy lube-(work truck)-to get it serviced. according to the previous ticket it had rotella put in it. when they drained it it looked like it was thin as water and very black. they did the fuel and oil filters and put in rotella from jugs. they started it up and she was still running very rough. after about tem minutes of running she smoothed right out. after that i asked them to contact the other store. there pump for the rotella had been out. still out. damn. they ran the truck for 10 more minutes after a lot of complaining. then changed the oil and filter again. drove my 110 mile round trip from work and home and all is well. she is running good again. no longer afraid to pass people.
so if you have your oil changed ( i dont have a choice with this truck) make darn sure they are using the right oil.