AFAIK 40nm refers to the bigger bolts used to retain the pre-pump filter on some engines, although I am fully aware a Google search, “what torque is the sump plug bolt” or words to that effect, and more so since AI started giving the responses, often comes back with the incorrect 40Nm. People then blindly follow that as gospel. Someone did say it was printed in a Ducati Workshop/Service Manual but I’ve not come across it. Yes to the sealant too, belt & braces
I did see it in an online version of the ducati manual at one point. It's amazing the number of sump plugs i have changed because they are so tight the allen hole is rounding off.
