regarding liquimoly, in my books, it's a good oil, not something super special, just over hyped by pakis, my brother was previously using liquimoly 20w504t then he shifted to liquimoly 10w40 but he wasn't satisfied with it, at the end I bought zic m9 just to try once, and he mentioned that bike performed significantly better, based on his experience I will recommend 10w40 M9
and I just bought 2 more packs it usually takes time whenever it's out of stock
I never rode bike so can't share my own experience
and regarding 10w40 vs 20w50 debate, 10w40 anytime
go with fully synthetic
avoid mineral or semi synthetic
yes if you want, you can change now
in bikes, because of wet clutch, oil makes a lot of difference
I have no idea as I never owned a bike
in case of car warranty claim. they have a centralized system and they check the record and make sure if car was maintained by the dealership, maybe just like that your bike dealer is maintaining a record, you can ask them regarding this and tackle accordingly
