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Blue smoke at startup?
My 7.3L puts out blue smoke upon initial startup.It lightens up after the engine runs for a minute.After that it disappears.Seems to occur on cold startup.For example,today it was in the 40's and it was noticeable.The engine has 100k on the clock.Runs smooth,no unusual noise,good power.I just purchased the truck,and i don't remember seeing the startup smoke prior to my oil change.I used shell rotella and the level is right on the money.Any thoughts?When should i really begin to worry?Thanks everyone.
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