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Change your transmission oil

Discussion in 'General Truck Info' started by t_g_farrell, Sep 12, 2022.

  1. t_g_farrell

    t_g_farrell Active Member

    So I have a 96 Suzuki Every Van and I got it about 1 year ago. I've been doing preventaive maintenance in the last year and finally got around to changing the manual transmission oil. I can't describe how amazed I was at how poorly the oil condition was. It came out grey and brown. The plug had a 1/4" of sludge caked on it that was just a grey mush. Heres the picture of the plug before I cleaned it off:

    Pretty right? I cleaned it up and put about 1.5 quarts of Royale Purple 75-90W oli back in. Hopefully that will make the shifting that much smoother.


    Change your tranny oil people, its probably still the oil from the factory.
    Liberty4Ever likes this.
  2. Liberty4Ever

    Liberty4Ever Member

    I finally got together all of the different gear oil I need to change the fluids in the manual transmission, transfer case, front differential and rear differential. On the 1996 Hijet, it's all technically different oil, which is a bit of a pain. The specified straight weight oils weren't readily available in the US. I mostly selected the closest multi-weight gear oils I could find, making sure to select the correct API rating to avoid additives that would attack yellow metals where that mattered. I ended up with three different gear oils instead of four. I'm waiting for a break in the winter weather (either cold, or rainy) to change the fluids. Today was an almost. Hopefully tomorrow, before the rains start again.

    I also bought a selection of copper crush washers to use when reinstalling the drain plugs and fill plugs rather than trying to reuse the existing crush washers. I did the engine flush and oil change a couple of weeks ago and there was no crush washer on the drain plug. It was slowly weeping oil, and the attempted fix was MOAR TORK. The drain plug threads were half stripped. Yikes. I replaced the drain plug with an F-133 Fumoto drain valve to make future oil changes faster and easier, and it threaded in without problem, torqued nicely, and the supplied fiber washer stopped the minor oil drip. I hate leaky vehicles.

    I concur with your statement. Change the fluids!

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