Oil Change Intervals and Best Practices 1. Introduction: Keep Your Tractor Engine Healthy A tractor’s engine is its most valuable component. Whether it’s a Kubota, Yanmar, Iseki, or Mitsubishi tractor, proper maintenance ensures long life and strong performance. Among all maintenance routines, changing engine oil on time is the most crucial. Regular oil changes protect the engine, reduce wear, and improve efficiency — making your Japanese tractor a reliable partner for years. If you are looking for Used Japanese Tractors, please check our latest listings here: Used Japanese Tractors for Sale – EVERYCAR.jp