The problem with the video is the removal of the sump guard. My Stelvio has crash bars that protect the heads. This is integrated into the sum guard. To loosen this system off is a time consuming job but is the only way to remove the sump guard. An oil change turns into a big job for the Stelvio. Not as easy as it looks in the video .
I make the old filter and the new one kiss on the seal but I never filled the new filter with oil like that. What is the logic behind it, to minimize the oil level fluctuation after running the bike a while after the new filter got filled again?
Depends on preference and how the filter is mounted. In a big car or truck with a bigger filter it will save some time to fill the oil case and also minimally prevent against a possible dry start. But in a motor that is well run it probably doesn't matter that much. In this case since the filter mounts straight up it's easy enough to do it and screw the filter in without making a big mess, so why not pre-fill as Bostjan has done. In the case of a motor where the filter is mounted at an angle it's probably not worth pre-filling it.
@@GiorgioPranzo I agree, if the filter is installed straight-up like this, it is a no-brainer. Most other brands, the oil filter is installed horizontal and it would be messy to say the least. One thing I noticed Bostjan drained the oil when the engine was seemingly cold. I typically do the oil changes after -at least- running the engine for 4-5 minutes. Moto Guzzi recommends even riding the bike for 5-10 miles. So, I would probably remove the skid plate first, then go for a short ride (10 minutes/5 miles should be more than enough on a warm day), then do the oil change upon returning. He should also wear nitrile gloves, petrol byproducts are not good for skin.
