CVT steel belts and variator pulleys call for periodic oil changes and inspections just after 20-40k kilometres The main pulley receives even bigger since it turns, which makes a specific equipment ratio. In this instance, a single turn in the driving pulley can make the pushed pulley transform 4 times. https://d-cvt30505.ja-blog.com/33871876/the-2-minute-rule-for-d-cvt