| Since I started riding Harley's more than 20 yrs ago I have always changed the oil at 2,500 miles. Now keep in mind if your in very dusty or very extreme heat conditions you may not want to go over 2,500 miles. The main killer that breaks down oil is "Heat"...I have always thought that its easier and cheaper to change oil at 2,500 miles verses rolling the dice and buying a new motor. Ride Safe, David. |