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Thread: 300ex Oil Change

  1. #1
    Join Date
    Nov 2007
    Location
    Plattsmouth NE
    Posts
    120

    300ex Oil Change

    ok, so i got this 300ex for my girlfriend. bought it from a private owner and he didn't have the owner's manual for it. i'm wanting to change the oil in it but am having way to hard of a time even finding the drain plug, where the heck is this thing at??? deff. not like my 400ex.

    so can ya'll help me out here?

    where exactly is the drain plug?
    what is the capacity?
    and does it take 10W-40 like my 400ex does?



    thanks for any help!
    2004 Honda TRX400EX
    DG Bumber
    Pro Taper Handle Bars
    RTC Clutch and Brake Levers
    DG Nerf Bars
    White Bros. E-Series Exhaust
    ITP Holeshot HD tires on Black Rims
    K&N Filter w/ Outerwears Prefilter Filter Lid is MIA
    Moose Racing E-Brake Block Off Plate
    MMF Black Diamond Plate Air Scoops
    Cut Fenders
    450R Shocks
    PRM Grab Bar
    Hotcams Stage 1

  2. #2
    Join Date
    Apr 2005
    Location
    KC, Missouri
    Posts
    5,225
    Drain plug is on the bottom of the Transmission case. Right in the middle.

    Just measure using the dipstick (unscrewed). Nothing tricky like the 400ex. It should be about 1-3/4 quarts (w/o an aftermarket oil cooler).

    300ex and 400ex use the same grade of oil
    Brandon -O||||O-
    1998 Honda TRX300EX (330)

  3. #3
    Join Date
    Nov 2007
    Location
    Plattsmouth NE
    Posts
    120
    awesome, thanks man!
    2004 Honda TRX400EX
    DG Bumber
    Pro Taper Handle Bars
    RTC Clutch and Brake Levers
    DG Nerf Bars
    White Bros. E-Series Exhaust
    ITP Holeshot HD tires on Black Rims
    K&N Filter w/ Outerwears Prefilter Filter Lid is MIA
    Moose Racing E-Brake Block Off Plate
    MMF Black Diamond Plate Air Scoops
    Cut Fenders
    450R Shocks
    PRM Grab Bar
    Hotcams Stage 1

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