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Mayo under oil cap

Discussion in 'Motors' started by cheets64, 24 Apr 2010.

  1. cheets64


    Joined: 30 Sep 2005

    Posts: 25,895

    Location: Wigan

    Do about 15 miles a week, car is running fine but getting mayo under the cap, dip stick is saying full oil , was serviced in Sept 09 and done about 600-700 miles since then, last car I had did the same but drove it more miles and was giving out blue/gray smoke was possible HGT on it and tried a few things to see what the problem was engine flush but am I thinking the miles I am doing is more down to condensation, noticed a lot of water coming out of the exhaust when I park up at home. Its a Yaris and last car I had was a Corsa.

    Hope its not possible HGT, I know people say can be caused from water getting into the oil but is condensation viable?
  2. Morba


    Joined: 7 Mar 2003

    Posts: 28,189

    Location: Krispy Kreme drive thru

    take it for a long drive
  3. helpimcrap


    Joined: 13 Jan 2004

    Posts: 12,559

    Location: Leicestershire

    head gasket. or it's been stood a reaaaally long time and the engine wasn't run until warm.

    i think.

    could be if you're only doing 15 miles a week but not in one go. that knackers engine quicker than high mileage due to always running them cold.

    take it for a long run - 10 miles once a week - to get it warm.
  4. cheets64


    Joined: 30 Sep 2005

    Posts: 25,895

    Location: Wigan

    Blasted it down B road today, felt ok, engine was running good and left it running while parked at home and listened for any knocks, ticked over ok its a pain in the arse because I never need to drive more than 5 miles and never been a fan of just driving unless I need to, I know its not helping my engine driving the way I am but the japs build some decent kit so it should be holding up with it being well kept.

    What with summer I will be on the bike soon so it will be getting used less.
  5. Dangerous


    Joined: 18 Oct 2002

    Posts: 21,523

    Location: Nordschleife

    Drive it like it was stolen!

    Or I can :D
  6. GeX


    Joined: 17 Dec 2002

    Posts: 6,490

    Location: Manchester

    don't worry until it starts getting as bad as mine did;


    just take it for a good drive
  7. Leeum

    Wise Guy

    Joined: 19 Sep 2005

    Posts: 1,242

    15 miles a week is nothing - chances are the engine rarely gets up to working temperature. I wouldn't worry about it - take it for a good run and it'll probably disappear.
  8. Moeks


    Joined: 24 Feb 2003

    Posts: 8,460

    You should really give it a good run each week, 15 miles in one go would be fine. I'd take it up to motorway speeds and get the revs up nice and high every so often when it's warmed up too.

    You should actually drive it though, don't just let it idle for ages as that doesn't do the engine much good either. It needs to be used basically.
  9. MrFunex

    Wise Guy

    Joined: 17 Oct 2005

    Posts: 1,146

    Location: Southampton

    All the above is true - it sounds like your engine is never getting up to temperature for long enough to evaporate the condensation inside it. Take it for a drive - enjoy it! Your problems will be gone before you know it!
    Last edited: 25 Apr 2010
  10. mel d


    Joined: 29 May 2009

    Posts: 598

    how much for head gasket to be replaced ? 10 min drive sound good :D
  11. Slime101


    Joined: 18 Oct 2002

    Posts: 12,841

    Location: Lost!

    Its not the head gasket though, its simply condensation due to short trips.
  12. Dogbreath


    Joined: 18 Oct 2002

    Posts: 16,657

    Location: Devon

    Unless you are doing the 15 miles in one go you are slowly ruining your engine and the mayo is simply down to the engine never warming up propely.
    Last edited: 25 Apr 2010
  13. malfunkshun


    Joined: 20 Aug 2003

    Posts: 6,685

    Location: Pembrokeshire

    my car does exactly the same thing, 5 minute drive to work each day is about all it gets. Uses no water and very little oil though :)
  14. Begbie


    Joined: 20 Oct 2004

    Posts: 25,001

    Location: ....

    My car done the same when I was doing 2 miles a day back and forward to work.

    Should be fine, just take it a long drive.