On Thursday, July 18, 2019 at 5:14:53 AM UTC-4, Rolf Mantel wrote:

Changing the oil bath of my Rohloff first time after some 5 years did
give me a massive speed boost, like pumping up the tires from 20 to 80
psi (I should have changed that oil a lot earlier).

Wow, that's the first time I've heard of that. Was the old oil extremely viscous?

- Frank Krygowski