Is that gear oil and transmission oil are the same thing?

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by jimmyboy, Jan 7, 2018.

  1. jimmyboy

    jimmyboy Light Load Member

    51
    16
    Mar 11, 2016
    0
    Try to buy the transmission fluid for my DT12 transmission but all I found was "gear oil 75w-90" ,wondering if it's the same thing.Also can I use the same type of oil (gear oil 75w-90) for the differential? Thank you.
     
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. I glide 47

    I glide 47 Road Train Member

    1,426
    1,523
    Jun 3, 2017
    0
    My transmission uses 50 wt synthetic oil
     
  4. I glide 47

    I glide 47 Road Train Member

    1,426
    1,523
    Jun 3, 2017
    0
    75wt 90. Okay for diff.
     
  5. Goodysnap

    Goodysnap Road Train Member

    3,694
    8,948
    Jul 12, 2017
    0
  6. jimmyboy

    jimmyboy Light Load Member

    51
    16
    Mar 11, 2016
    0
    Thank you everyone for information.
    One more question. My DT12 transmission come with 750,000 miles warranty. Does it mean, it doesn't require any oil cange up until 750,000 mile?
     
  7. jimmyboy

    jimmyboy Light Load Member

    51
    16
    Mar 11, 2016
    0
  8. Pedigreed Bulldog

    Pedigreed Bulldog Road Train Member

    7,737
    14,421
    May 7, 2011
    0
    Your car had a "bumper to bumper" warranty for 3 years/36,000 miles. Did you have to change the oil in it during that time?

    A warranty covers stuff that breaks due to manufacturing defects. Lack of proper maintanence will void a warranty nearly 100% of the time.
     
    AModelCat and Broke Down 69 Thank this.
  9. Goodysnap

    Goodysnap Road Train Member

    3,694
    8,948
    Jul 12, 2017
    0
    Just to be clear if you do this yourself. You must use transmission lubricant. Not!!!!!!!! 75w90 gear lube. They are not the same thing. Take the time to look at the fluid specs and get the correct lube.
     
    jimmyboy and Broke Down 69 Thank this.
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.