Gas Gas Halley
Coolant capacity & service interval
Gas Gas Halley coolant capacity ranges between min and max. Service intervals require a change every 24 months. The data covers 4 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| Halley EH 125 (2009-2009) |
|
| Halley EH 450 (2009-2009) |
|
| Halley GM 450 (2009-2009) |
|
| Halley SM 125 (2009-2009) |
|
Additional Notes
- Across all four 2009 Gas Gas Halley variants, the coolant fill level is specified as between the minimum and maximum marks on the reservoir, rather than as a fixed volume. This approach ties the service fill to the visible range on the expansion tank or reservoir, meaning the correct level is confirmed by sight rather than by measuring a precise quantity.
- The Halley EH 450 and Halley GM 450 both carry a 24-month coolant change interval under normal use conditions. A 24-month interval is a calendar-based schedule, meaning the change is due after two years of service regardless of mileage or hours accumulated.
- The Halley EH 125 and Halley SM 125 share the same fill specification of between minimum and maximum, but neither carries a stated change interval in the specifications. The 125cc variants and the 450cc variants therefore differ in the completeness of their interval data.
- The normal use condition applies to all four Halley variants listed. In fluid service contexts, a normal use designation typically reflects standard operating conditions as opposed to more demanding severe-use cycles, and the 24-month interval on the 450cc models is tied specifically to that normal use classification.