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  1. 99-03 7.3L General Discussion
    I have been using Mobil Delvac 15w-40 Conventional oil for the last 5 years because that is simply the least expensive oil per qt. I do the Arch Oil thing and HPOP oil as well. I have good results and no stiction but do have cold start issues even after cycling glow plugs for the full 2...
  2. 99-03 7.3L General Discussion
    Hey all, I just picked up a 1997 e350 short bus with a reman 2001 7.3. I've heard that the oil pressure gauge is an "idiot light" but that it usually registers dead center when there is any oil pressure. My gauge is topped out from the moment I start the engine 'til I shut it down. Any clues on...
  3. 99-03 7.3L General Discussion
    Does anyone know about the John Deere Plus II 15w40 engine oil!? Is it cheap? Does it work well in summer/winter? Runs good? How many miles before you have to change!? Anyone know? Thanks! :icon_ford: :woot:
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