How often do I need to change the oil on my Honda CT90 / Trail 90? March 03, 2025 22:00 Updated Oil Change: Every 1,000 miles / 1,500 km Oil Change With Filter and Screen Clean Out: Every 6,000 miles / 10,000 km Related to CT90 inspection adjustment oil Related articles What engine oil should I use on my Honda CT90 / Trail 90? What fuel should I use in my CT90 / Trail 90? How often should I lubricate and inspect the drive chain on my Honda CT90 / Trail 90 What size drive chain do I need for my Honda CT90 / Trail 90? Parts That Will Need Replacement On A Vintage Honda Project Motorcycle aka The "Laundry List"