'00 Odyssey Losing Oil, Very Dirty

Discussion in 'Odyssey' started by bpm4736-honda, Apr 23, 2007.

  1. I need some help on a perplexing issue with our 2000 Odyssey.

    After many trouble-free miles, it has begun losing oil in dramatic
    fashion. We've added a 1/2 quart twice in the last 3 days of light
    driving alone.

    Here's the mystery:

    Absolutely no oil on garage floor. Not a drop.
    The coolant levels are perfect.
    The engine is not overheating or running warm.
    Engine acceleration and power are normal.

    Besides losing oil, the only other possible symptom is that the oil on
    the dipstick is very dirty.

    Any suggestions or ideas? Any help is greatly appreciated.
    bpm4736-honda, Apr 23, 2007
  2. bpm4736-honda

    E Meyer Guest

    Has the oil ever been changed? If so, how many miles ago?
    E Meyer, Apr 23, 2007
  3. The times I've seen reports of sudden increases in oil consumption when it
    was finally resolved, it was a broken compression ring in one cylinder. I
    think it toook teardown to find that; it didn't show up on a compression
    test. The catalytic converter burned up the smoke, but oil additives are
    hard on the catalyst, too. A look at the spark plugs, looking for evidence
    of oil on one insulator, would be a good way to go.

    Michael Pardee, Apr 23, 2007
  4. My uncle had a 98 ody bought it used... they replaced the engine at the
    dealership due to a porous block. But I doubt that would manifest itself as
    quickly as yours.


    loewent via CarKB.com, Apr 23, 2007
  5. bpm4736-honda

    motsco_ Guest


    Check your PCV valve also. It can suck the oil out of your engine and
    burn it invisibly. More likely what M Pardee said, though.

    motsco_, Apr 23, 2007
  6. While I can't say for certain, I believe the bad cylinder on the $200
    Civic is a broken ring and it surely does show on a compressions test.
    And that thing is smokin' bad 'nuff to kill mosquitoes especially when
    letting off the gas going downhill.


    <choke, gasp whimper>
    Grumpy AuContraire, Apr 23, 2007

  7. Poor ventilation can certainly increase oil consumption. I remember a
    certain F*rd LTD that normally consumed a quart per day increased to
    emptying the crankcase in fifteen miles...

    Oh... The good ol' days!

    Grumpy AuContraire, Apr 23, 2007
  8. bpm4736-honda

    jim beam Guest

    depends which ring. oil control rings don't add much to compression,
    but they sure do let the oil in if they're dead. a top ring makes a big
    difference to compression and not so much to oil.
    jim beam, Apr 24, 2007
  9. bpm4736-honda

    jim beam Guest

    i agree.
    jim beam, Apr 24, 2007
  10. My car has graduated to the next stage. Previously, it simply was a lot
    of blowby. So much so, the previous owner use a garden hose fitting to
    allow the excess to blow out below but there was not a lot of smoke
    coming out of the tail pipe. Now, it mostly just smokes badly but on
    occasion, the blowby will return during certain acceleration speeds in
    the lower gears.

    At any rate, it will be fixed one way or the other in the next few weeks.

    I'm torn between an in-car overhaul or just building up an engine and
    swapping it out. If I do the swap out, I'll also put in a five speed as
    the current box is only a four speed.

    None of this would have been required if the previous owner did not
    "rebuild the engine" because it lost power... The problem simply was a
    plugged cat converter..

    But then, it would never have sold for a measly $200...

    Grumpy AuContraire, Apr 24, 2007
  11. bpm4736-honda

    jim beam Guest

    i'd /definitely/ go 5-speed. my civic '90 4-speed revved so high, i'd
    have to keep checking to see if i'd left it in 3rd.

    hey, i got that '90 civic /free/ because it wouldn't start and the owner
    was sick of getting hosed by her local garage on repairs. all it needed
    was a set of new plugs.
    jim beam, Apr 24, 2007
  12. I'm inclined to agree plus the fact I don't really know what I'll find
    on a 160K + engine that has already been "tampered" with by the previous

    Yep, you gotta be in the right place at the right time and have some
    basic knowledge/insight plus females and old folks are "ripe" territory
    for abuse by repair shops.


    (Who is old but doesn't stand for much in the way of abuse...)
    Grumpy AuContraire, Apr 24, 2007
  13. So, are you going to let your alternator oil go unchanged forever? You
    should really get the muffler bearings serviced at the same time.

    Mike <8^P
    Michael Pardee, Apr 24, 2007

  14. I sorta got suspicious when they told me the four way slug nuts were
    worn out...

    Grumpy AuContraire, Apr 25, 2007
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