I probably should have combined this with my gearbox oil question. 2007 BMW R1200R. My owners manual says nothing about final drive oil, and previously it was changed by the dealer.
The only specs I could find online are 75W90 GL5. But people act like it wants some kind of unicorn blood. Is there some other spec in addition I need to look for? Or will the bottle of Supertech Semisyn 75W90 GL5 I have in my garage be OK? If not, what?
On an R1200R forum people said Castrol Syntax Long Life 75W90 was the same as an equivalent BMW Castrol oil, and should be suitable. And some use other stuff.
The only specs I could find online are 75W90 GL5. But people act like it wants some kind of unicorn blood. Is there some other spec in addition I need to look for? Or will the bottle of Supertech Semisyn 75W90 GL5 I have in my garage be OK? If not, what?
On an R1200R forum people said Castrol Syntax Long Life 75W90 was the same as an equivalent BMW Castrol oil, and should be suitable. And some use other stuff.