M5OD-R1HD what is the correct fluid?

Best fluid for the M5OD-R1HD transmission is...

  • Synthetic parts store ATF

    Votes: 0 0.0%
  • Synthetic manual transmission fluid

    Votes: 0 0.0%

  • Total voters

Mike Tonon

I don’t know that ATF is really too thin for these transmissions. I mean, I’ve plowed snow with this truck and beat on the transmission for over a decade. It’s still working great.

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