So I am writing this post to inform my entire experience with a Streetfighter v4s 2022 model and a 2023 Panigale v4r. Both have akra with Ducati racing evo flash and sprint p08 air filter. I do 40% commute styled riding and 60% fast. On the SF, I mostly cruise at 150 or 160kmph, and occasional blasts upto 260kmph. Same on the v4r. I've had 2 engines changed on the v4r and going through the third engine now. On the v4s, its 4k miles and its showing same issues of oil blow by into airbox. Now I know you might think its due to overfill of oil, but no. I measure oil in the bike before every ride in vold start with upright without paddocks and make sure its between min and max. And still end up with oil leaks into airbox. After a long heated discussion with ducati, I've realized all Ducatis have same issues. Unless you only cruise on it, the engines wont last long. I had an m1000rr 2022 which I rode for 10k miles before selling it off and didnt need rebuild. I have a new 2023 m1000rr and a 2021 zx10r both of which have done 4k miles and 10k miles on them with zero issues. All tuned for racing. This does make me think how bad is the quality of the v4 engine. Mostly disappointed at this point.