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Discussion Starter · #1 ·
Did any of you see any advantages using 75W-140 over the 75W-90 the bike comes with from the factory? I heard that there are quite some dealers who move to 75W-140 during the 1000KM service, while some others stay with the same type of 75W-90.
 

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Discussion Starter · #5 ·
I move countries a lot, and thus move dealers quite often. And multiple dealers I used for service parts, said they were using 75W-140 instead of the "recommended" 75W-90. Moreover, here its not often talked about, but if you check the German NineT forum, there are quite some guys swearing using 75W-140 as their gearbox and bevel gear oil.
 

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Discussion Starter · #10 ·
View attachment 159877 View attachment 159878

... let's say it is still 50:50 (in many Boxer forums) - some mention a smoother shifting with 140... some not !? Could be useful at higher temps - ..or not !?

View attachment 159880 ... View attachment 159881 ... View attachment 159882
Thats exactly why I am asking it here Tom. On the German forum people are almost fighting about what to use, and here I rarely see it mentioned, so I thought people would be a little less influenced here with their opinion on the matter haha.

Dealers seem to be rather 50/50 as well. I had some tell me they change all of them to 75W-140 at their 1000km service, while others told me to use 75W-90, keep using 75W-90, and never ever change it to anything else than 75W-90.
 
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