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  1. #1
    Super Member JDgreen227's Avatar
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    Nov 2003
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    7,745
    Location
    Central Michigan
    Tractor
    4210 MFWD Ehydro--'89 JD 318

    Default Are engine oil leaks a symptom of age or mileage?

    Was cleaning my garage floor yesterday and noticed that my Y2K GMC has just begun leaking oil, it's not from the drain plug or oil filter. I am truthfully surprised it has gone this long without a leak, as most of my vehicles began leaking oil at the 6 or 7 year mark. The truck still has less than 40,000 miles and I am wondering if engine oil leaks are more a symptom of age or mileage?
    Anyone have an opinion on this?
    Rather than worry about the things you want but don't have, be grateful for the things you don't want and don't have.

    I didn't plan to do much of anything today, but by noon I was almost half done.

  2. #2
    Platinum Member
    Join Date
    Jan 2011
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    573
    Location
    Richmond, IN
    Tractor
    Kubota MX5100

    Default Re: Are engine oil leaks a symptom of age or mileage?

    Both. But age has it's effects on rubber gaskets for sure.

    Your engine has both metal and rubber(silicone) gaskets.
    Kubota MX5100
    '95 Ram 2500 CTD
    Stihl MS441 ported
    Stihl MS280 ported

  3. #3
    Elite Member houstonscott's Avatar
    Join Date
    Dec 2010
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    4,213
    Location
    Oglesby, Texas
    Tractor
    Kubota L3800, Kubota GR2120, Kubota RTV1100, Kubota 5100sc

    Default

    First, anything with a gasket or rubber hoses will with time leak. It's time and exposer to heat and UV that drys them out makes them brittle. If exposed to vibration on top of those things they will fail faster if not exposed to vibration too.

    HS

  4. #4
    Veteran Member troutsqueezer's Avatar
    Join Date
    Sep 2010
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    1,135
    Location
    Pilot Hill, CA.
    Tractor
    Kubota B21

    Default Re: Are engine oil leaks a symptom of age or mileage?

    My Tacoma PreRunner is 13 years old with 150K miles. It doesn't leak a drop.
    - Dennis

    Once you see the bandwagon, it's too late.
    www.goldfinch-acres.com
    Kubota B21
    Polaris Ranger
    Yamaha Kodiak

  5. #5
    Platinum Member
    Join Date
    Nov 2012
    Posts
    792
    Location
    mansfield,Il
    Tractor
    john deere

    Default Re: Are engine oil leaks a symptom of age or mileage?

    I know the older I get the more I leak .

  6. #6
    Super Member JDgreen227's Avatar
    Join Date
    Nov 2003
    Posts
    7,745
    Location
    Central Michigan
    Tractor
    4210 MFWD Ehydro--'89 JD 318

    Default Re: Are engine oil leaks a symptom of age or mileage?

    Quote Originally Posted by kevin37b View Post
    I know the older I get the more I leak .
    Funniest thing I have read on TBN in a long time...
    Rather than worry about the things you want but don't have, be grateful for the things you don't want and don't have.

    I didn't plan to do much of anything today, but by noon I was almost half done.

  7. #7
    Platinum Member Katahdin's Avatar
    Join Date
    Dec 2010
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    530
    Location
    Scarborough, ME
    Tractor
    Yanmar LX4500, Toro z420

    Default Re: Are engine oil leaks a symptom of age or mileage?

    Your leak might not be a gasket, or hose, but the rear main bearing seal on the side of the engine that mates to the transmission.

  8. #8
    Super Member
    Join Date
    Apr 2000
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    8,012
    Location
    Shingle Springs California
    Tractor
    New Holland TC40D

    Default Re: Are engine oil leaks a symptom of age or mileage?

    Have you checked to see if there is anythign in it?

    Quote Originally Posted by troutsqueezer View Post
    My Tacoma PreRunner is 13 years old with 150K miles. It doesn't leak a drop.
    My '00 Jag XJ8 does not leak. Funny thing, as a Harley enthusiast for years, the worst leaking vehicle was a '81 Suzuki GS550 I had. Got it from a friend who got it new and took great care of it. But it leaked, parts rattled off. Leaked worse than any Harley I ever saw.
    RobertN in Shingle Springs Calif

  9. #9
    Veteran Member
    Join Date
    Feb 2012
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    1,174
    Location
    Northern Michigan
    Tractor
    KIOTI DK50 HST

    Default Re: Are engine oil leaks a symptom of age or mileage?

    1st of all neither. Poor design and use of inferior meterials [planned obsolesence] is the main problem. If a vehicle is allowed to sit or if it is overheated it will cause seals to start leaking. If the manufacturer used rubber [buna] instead of silicone or viton it will not last as long. I have a 01 7.3 that is completely dry and a 83 cat 4 cyl that does not leak a drop. Can't say that about a few newer vehicles we own. CJ
    Kioti DK50HST Cab
    401 FEL
    Saws, 338xp,346xp mod,372xp mod, 390xp, Stihl combi 130 trimmer.

  10. #10
    Veteran Member
    Join Date
    Mar 2010
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    1,821
    Location
    Ontario
    Tractor
    CT235

    Default Re: Are engine oil leaks a symptom of age or mileage?

    Could also be a plugged or failed PCV system.
    Tim.

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