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hemi dodge oil pressure

  1. oil pressure going whack

    Oil Change
    About a week ago i changed my oil in my 07 dodge hemi 5.7 liter with 165k miles. i noticed in my previous oil changes that jiffy lube has been putting 5w-30 in it, when the cap says 5w-20. I recently add 5w-20 like a normal human being. But now as I was on my way home my pressure gauge dropped...
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