General
NOTICE
Use only Genuine Harley-Davidson Extended Life Antifreeze and Coolant. Use of other coolants/mixtures may lead to motorcycle damage. (00179c)
GENUINE HARLEY-DAVIDSON EXTENDED LIFE ANTIFREEZE AND COOLANT is pre-diluted and ready to use full strength. It provides temperature protection to -34° F (-36.7° C). DO NOT add water.
NOTICE
De-ionized water must be used with the antifreeze in the cooling system. Hard water can cause scale accumulation in water passages which reduces cooling system efficiency, leading to overheating and motorcycle damage. (00195b)
If GENUINE HARLEY-DAVIDSON EXTENDED LIFE ANTIFREEZE AND COOLANT is unavailable, a mixture of de-ionized water and ethylene glycol-based antifreeze may be used. At the first opportunity, change back to GENUINE HARLEY-DAVIDSON EXTENDED LIFE ANTIFREEZE AND COOLANT.
Checking Coolant Level
  1. Position motorcycle upright. See SCHEDULED MAINTENANCE → Preparing the Motorcycle for Maintenance.
  2. Allow engine to cool.
  3. Remove left side cover. See Service Procedures → Side Covers.
  4. See Figure 1. Check that coolant level is at or slightly above the "COLD FILL" line (2).
    5. NOTE
    If the coolant bottle is empty when the engine is cold, inspect the system for leaks. Repair as needed. Fill system with coolant and purge any trapped air.
  5. If level is below "COLD FILL" line on tank, remove overflow tank cap (1).
  6. Add GENUINE HARLEY-DAVIDSON EXTENDED LIFE ANTIFREEZE AND COOLANT until fluid level reaches, or is slightly above the "COLD FILL" line.
  7. Install overflow tank cap.
1Overflow tank cap
2Cold fill level
Figure 1. Coolant Overflow Tank