Lubrication is a major factor in the performance and service life of the clutch components.
Refer to Maintenance Scheduling → Regular Service Intervals → Regular Service Intervals: 2013 Softail Models. The primary chaincase should be drained and refilled with fresh lubricant at proper intervals.
NOTE
Use only GENUINE Harley-Davidson FORMULA+ TRANSMISSION AND PRIMARY CHAINCASE LUBRICANT (Part No. 99851-05 qt) when changing primary chaincase lubricant.