Where does the oil go?

Discussion in 'Performance Mods' started by Longshot, Sep 26, 2020.

  1. Longshot

    Longshot New Member

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    I know there's many posts about how these eat oil. Mine goes through tons of oil. I don't have any smoke and I was never able to figure it out. I just did an ATI damper because my balancer almost fell off. I read that the front crank seal might leak in this situation. I saw some oil there but I'm kicking myself for not replacing the seal while I had the HB off. Is it possible to lose like a quart of oil for every 4 refuelings through the front seal and not see any oil droplets under the truck? I was thinking maybe it only leaks when the truck is moving and RPMs are higher?
     
  2. rottenronnie

    rottenronnie Well-Known Member Supporting Member

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    IF you aren't blowing a cloud of blue smoke when driving down the road (accelerating or decelerating), it isn't likely burning it.
    Get it up on a hoist and have a good look around.
    One spot that often gets overlooked is the oil filler cap. It can be VERY hard to see oil leaking from there. The original black o-ring doesn't last forever. The green o-rings (like those on the SRT Jeeps for example) are more durable.
     
  3. beastmode1

    beastmode1 Full Access Member

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    Have you checked your oil lines going to the cooler? My 10 had a little leak there until I had it fixed.
     
  4. Longshot

    Longshot New Member

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    Not oil cap, I replaced it last winter and it's not leaking. Zero oil on the oil cooler lines and front valence. Oil pan is tight. I was kinda hoping there would be a bunch of oil in my intake manifold but there was zero. Its so much oil I just don't get it. At least I've got lots of room to clean it all up to continue my search. My new hydraulic pump leaks everywhere making it more difficult. It's kinda why I decided to do an electric fan conversion, thinking that my old hydraulic fan isn't working well causing it to leak. I haven't searched for an oil level sensor mod, yet. I don't really care except never knowing when to put oil in, uhg.
     
  5. AMS3

    AMS3 Well-Known Member

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    Odd. I've got 78K on my truck, just did my second oil change in a year. It only used around 1/4 qt, and that's putting 7500 miles on the truck. I do however, use the 25K amzoil, which is quite expensive, but gives peace of mind.
     
  6. 2quik6

    2quik6 Full Access Member

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    If its loosing 1 qt every 4 fill up, thats about 800 miles for me, then there would be a pool of oil every time you stop, and the bottom of the truck would be coated with oil and wet. Doesn't take much be spread everywhere.
    It has to either be burning it or sucking it up through the PCV valve, otherwise there is no where else for it to go. May check your coolant for any oil, or lack of coolant in case of a head gasket leak.
     
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  7. 505

    505 Full Access Member

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    There was a TSB from Dodge years ago that read something to the effect that- depending on miles, "a quart per 750 miles is normal". I know. I fell in the floor when I read it. From Dodge, that's what it said. I switched to 15/50 and mine doesn't use anywhere near that now.
     
  8. AMS3

    AMS3 Well-Known Member

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    But it does put a strain on the pump, I would think. Everyone who's spoken on what to use, they don't recommend anything above 5W40/ Be careful
     
  9. 505

    505 Full Access Member

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    So far so good. I almost think it runs better with 50 weight. Seems like the lifters stay pumped up. Maybe voodoo IDK. But I know it doesn't use like it was before. Here in Florida heat anyway.
     
  10. Psycho1122

    Psycho1122 Full Access Member

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    Last edited: Oct 10, 2020
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  11. Longshot

    Longshot New Member

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    I just wanted to follow up on this thread. After switching to ATI damper, no more disappearing oil. I guess its possible that if your balancer is loose, the oil might squirt through the crank
    seal only when the engine is revving and oil pressure is high...
    Cheers!
     
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  12. AMS3

    AMS3 Well-Known Member

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    Good to hear, and good to know for the rest of us.