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Thread: 8l90 trans fluid

  1. #1
    Tuner in Training
    Join Date
    Dec 2022
    Posts
    16

    8l90 trans fluid

    I'm currently having my transmission rebuilt. I plan to install a yank 2800 tc. What types of fluids would work with these transmissions and converter?

  2. #2
    Tuning Addict 5FDP's Avatar
    Join Date
    May 2012
    Location
    Rogers, MN
    Posts
    13,559
    Only use the new Mobil 1 fluid in the 8 speeds

    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.