4.3 questions

Discussion in 'GM Powertrain' started by Dakota1820, Mar 22, 2012.

  1. Dakota1820

    Dakota1820 Member

    I did a compression test on my 92 pickup today it had 208000 miles the compression was all between 175-183 . I assume thats pretty good. But every plug thread had oil on them the tips were white but there was oil on the threads. I havent had it long enough to tell if it is really using oil in 1000 miles Its moved a hair. Not hardly at all. The guy said it uses about 3/4 of a quart in 3000 which seems about normal on older chevys. When I bought it was due for a change and it was only half a quart down. And the guy has proved to be honest about everything else. Truck runs great and doesnt smoke so I'm confused. All help is appreciated. Thanks
  2. rileyjr16

    rileyjr16 Epic Member 5+ Years 1000 Posts

    Sounds right about normal to me. I recall "oil" in and on the threads of the spark plugs of my dad's 92, my old 97 and my 99 5.3. Not sure about the comp though I remember doing it to my dads 92 4.3 but can't remember what it was.
  3. Z71_guy

    Z71_guy Epic Member 5+ Years 1000 Posts

    i wouldn't worry about it unless you start to see major consumption issues
  4. Dakota1820

    Dakota1820 Member

    Im not real worried. Im more puzzled that there is good compression but all the plugs have the same amount of oil on them.
  5. moogvo

    moogvo Epic Member 5+ Years 1000 Posts

    GM claims the 1 quart every 3000 miles is normal operation for a NEW engine. In this case, I have to refer to some advice my buddy likes to hand out:

    Buddy: "Does it run?"
    Me: "Yes."
    Buddy: "Then drive it."

    Besides, with the threads of the plugs well lubricated, you don't have to use any anti-sieze on them when doing a tune up!

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