I would like to share my experience if valvoline champ 4T here. This is the 3rd time I have drained it from suzuki gs150
I have taken this ride to babusar recently, and my oil had already clocked 900 kms, meaning the drain was almost due. Nevertheless, the bike performed its best. Just for precaution, I drained it at babusar top (no pics sorry), and poured in fresh oil
The next day, I rode my bike for 16 hours straight, covering almost 650 kms, at a speed of 80-90km/h with occasional rests all tge way back to lahore. Once back in lahore, I stretched this oil to another 600 kms within city, meaning I dragged this oil for 1200km total. Here are the results