Just wanted to know what type of final drive and tranny oil is being used in the R1100R? Dealer says they have been using 75w-140 synthetic.
Not what the book calls out for? The book says either 80 or 90 or 80w-90 Hypoid gear oil depends on where you live. So the question is: can this rig successsfully use synthetic oil without causing leaks? IMO the answer is no, but would like to hear other opinions. My rig has 50k on it. I found that the last time it was serviced I did notice that they used 80w-90. But....... the dealer says 75w140? What the heck?
Just wanted to know what type of final drive and tranny oil is being used in the R1100R? Dealer says they have been using 75w-140 synthetic.
Not what the book calls out for? The book says either 80 or 90 or 80w-90 Hypoid gear oil depends on where you live. So the question is: can this rig successsfully use synthetic oil without causing leaks? IMO the answer is no, but would like to hear other opinions. My rig has 50k on it. I found that the last time it was serviced I did notice that they used 80w-90. But....... the dealer says 75w140? What the heck?
Think of dino 80W90 as minimum spec
the 75W140 is a very common sub IMO I'd not worry about it.
The leaking with synthetics goes back many years - they added the aromics to synthetic, keep the seals swelled (as with dino oil), a long time ago
As long as the grade includes GL5 spec than you should be OK. I use mineral 80/90 at the moment but will probably try synth the next time as that clunk is getting too embarrassing at traffic lights.
