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  1. #1
    New Member HellBender's Avatar
    Join Date
    Jun 2011
    Posts
    20
    Location
    NE PA
    Tractor
    CG 2600

    Default Black Engine Oil after 10 hours?

    This is my first Diesel. Its a GC2600. At 50 hours the oil was black. Now at 10 hours it's blacken significantly. Is this normal? Using the Agco Multigaurd oil.

  2. #2
    Gold Member MrSteve's Avatar
    Join Date
    Sep 2005
    Posts
    476
    Location
    Booksville, Florida
    Tractor
    Massy MF-1533

    Default Re: Black Engine Oil after 10 hours?

    Quote Originally Posted by HellBender View Post
    This is my first Diesel. Its a GC2600. At 50 hours the oil was black. Now at 10 hours it's blacken significantly. Is this normal? Using the Agco Multigaurd oil.
    Normal... Diesel has lots of carbon and the oil cleans that carbon as well as lubricates. Being that the oil cleans as well as lubricates is one of the reason why most diesels takes more oil, have bigger filters or more then one filter then gas engines.

  3. #3
    Super Member bp fick's Avatar
    Join Date
    Aug 2009
    Posts
    5,413
    Location
    Beaver Creek, Northern Michigan
    Tractor
    Kubota BX2360

    Default Re: Black Engine Oil after 10 hours?

    normal
    BP


    "Some chickens, some gardens and a Kubota."

  4. #4
    Veteran Member irvingj's Avatar
    Join Date
    Feb 2008
    Posts
    2,258
    Location
    Etna, NH
    Tractor
    2005 MF GC2310 TLB

    Default Re: Black Engine Oil after 10 hours?

    That oil was probably black after 1 hour.....:laughing

    Mr Steve's right on: diesel oil is designed to hold carbon particles in suspension; that's why diesel oils carry the "C" designation (compression ignition) as opposed to the "S" found on oil for gas (spark ignition) engines.
    '07 GC2310 TLB, 2360 snowblower, 2325 MMM, Bro-Tek thumb, Woods GTC40-2 tiller, Woods RB-60 back blade, KK TYR-60 landscape rake, DR 60" Power Grader
    '05 VW Jetta Wgn TDI
    Numerous antique Japanese motorcycles

  5. #5
    Elite Member
    Join Date
    Apr 2009
    Posts
    3,202
    Location
    adirondacks

    Default Re: Black Engine Oil after 10 hours?

    Normal

  6. #6
    Veteran Member Bigfoot62's Avatar
    Join Date
    Aug 2008
    Posts
    1,647
    Location
    W. Central Louisiana
    Tractor
    JD 5085M; NH TN70A; Ford 2600

    Default Re: Black Engine Oil after 10 hours?

    Quote Originally Posted by HellBender View Post
    This is my first Diesel. . .
    It will be OK.

    Seriously, some engines blacken the oil quicker than others, but they all do it. Diesels are not like gassers. Welcome to the club.
    '10 JD 5085M Cab MFWD FEL
    '07 NH TN70A MFWD FEL
    '81 Ford 2600

    JD 457 round baler; JD 265 & Kuhn GMD 600 disc mowers; Sitrex V-10 rake; Hardee 10', Rhino 7', & Modern 5' rotary mowers; JD 13' & Ford 6' tandem discs; HayKing 10' rennovator plow (sub-soiler); etc, etc.
    My other tractor is a '95 Kenworth.

    Donít ever wrestle with a pig. Youíll both get dirty, but the pig will enjoy it.

  7. #7
    Elite Member
    Join Date
    Oct 2006
    Posts
    3,476
    Location
    N.E., Ohio
    Tractor
    GC2310, Toro Reelmaster 5100D

    Default Re: Black Engine Oil after 10 hours?

    Check out the FAQ thread for new owners.

    http://www.tractorbynet.com/forums/m...wbies-faq.html

  8. #8
    Elite Member jonyyuma's Avatar
    Join Date
    Sep 2010
    Posts
    2,972
    Location
    35 miles North of Memphis,TN
    Tractor
    kubota L3000dt, ford 8n1952

    Default Re: Black Engine Oil after 10 hours?

    Yes, Soot and combustion by-products. If the engine is loose, quicker accumulation or Blackening..
    Okay, Legal disclaimer: Old but not senile, definitely do not have the answer to everything!

  9. #9
    Platinum Member rjmack's Avatar
    Join Date
    Jan 2010
    Posts
    555
    Location
    cariboo wagon rd
    Tractor
    GC2410 May 4/10, mf10 (2)

    Default Re: Black Engine Oil after 10 hours?

    my gc2410 will go about 50 hours before the oil starts to get dark, but even then it is still transparent on the dipstick. you can see the metal 'dust' starting to build up by that point. i'm finding that the difference in cold idle characteristics are really noticeable with fresh oil. btw, running castrol full synthethic.
    2009 mf gc2410
    1970 mf10 power wheel barrow
    1968 mf10 riding mower

    __________________________________________________ ______________

  10. #10
    Platinum Member
    Join Date
    Oct 2002
    Posts
    676
    Location
    Pomfret,Connecticut
    Tractor
    yanmar 336d w ldr,C,Cub,many attachments

    Default Re: Black Engine Oil after 10 hours?

    have had good results with Rotella 15-40, wears well

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