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  1. General Diesel Discussion
    I have a 97' f250 7.3l and I have always used conventional motor oil but I was wondering if I should switch to synthetic because I've heard it's better. My only concern is my truck has roughly 310xxx miles and could I switch with this many miles? And is Rotella synthetic a good choice?
  2. 6.0L Problems Forum
    I am sure this has been discussed before, but I cannot find the answer. I am considering switching my 6.0 with 100k mi over to Synthetic Oil. I just purchased the truck and spent a lot of money on new injectors and bullet proofing. I would really like to protect my investment. I have been told...
  3. General 6.0L Discussion
    I am getting ready to do a power steering flush. My fluid is dark brown and has a burnt smell. Truck has 155800 miles so I am guessing it is time. :hehe: Question: I have the procedure down pat but what fluid to use?? I have seen posts that recommend Mobil 1 synthetic ATF, Mercon, Mercon V...
  4. 99-03 7.3L General Discussion
    I have a couple questions. Has anybody had any problems switching from regular oil to full synthetic. I've heard rumors of people getting leaks from it, but I would think the problem just existed before and for some reason the synthetic made it more prevalent due to lower viscosities or...
1-4 of 4 Results