I was doing some of my 6000 miles service, and I decided to change the final drive along with the engine oil.
I found a 60cc syringe and I used 3 squirts of Royal Purple 75w90. I use the same stuff in the transfer case, front and rear diffs of my Toyota.
I thought the final drive change would drop my service charge by a lot, lol. Dropped it a whole 17$.... I still don't have a GS911 to reset the light, and they said they were going to check the valves, I'm still too lazy to do that...
138$ for... nothing? lol