49 Hudson

hudsonsplasher1
hudsonsplasher1 Senior Contributor
in HUDSON
What is the best heavy oil to use in the differential? 

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  • rambos_ride
    rambos_ride Senior Contributor
    Ken U-Tx said:
    Any GL-4 90 EP oil is good, but avoid GL-5, as the high sulphur in the GL-5 will eat the bronze spider gear thrust washers and bushings! Royal Purple is also rated as "yellow metal safe". Castrol Classic 90EP is also good. If you drive your Hudson in cold weather, then 80W-90 is good too.
    +1
  • hudsonsplasher1
    hudsonsplasher1 Senior Contributor
    Thanks guys, I appreciate it.

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