bcs001
Bronze Member
I posted this question last week in the Oil, Fuel & Lube forum but did see any definitive answers and I haven't been able to get detailed info from a current factory service manual so I wanted to see if anyone knows for sure what the 80W-90 gear oil requirement is. Owners manual only states SAE 80W-90 and no GL# rating. I do know there is a difference between GL4 / GL5 and their compatibility with some metals like brass. I topped off with GL5 since I was a little low at 25 hours and will be doing a complete drain and refill at 50 hours so I want to know if GL5 is ok for this axle.
Thanks,
Bruce.
Thanks,
Bruce.