Kawasaki GPX, EX
Coolant capacity & service interval
Kawasaki GPX and EX models require coolant with a capacity range of 2 to 2,2 liters. Service intervals for coolant changes occur every 24 months. The data covers 2 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| GPX 750 R (1986-1989) |
|
| GPX 600 R (1985-1995) |
|
Additional Notes
- The Kawasaki GPX 600 R carries a coolant capacity of 2.2 liters, which is a service fill figure representing the total volume the cooling system holds during a standard refill.
- The GPX 750 R has a slightly smaller coolant capacity of 2.0 liters, making the 600 R's system 0.2 liters larger despite the smaller displacement.
- Both the GPX 600 R and GPX 750 R share a 24-month change interval under normal use conditions, meaning routine riding without sustained extreme heat or heavy load cycles.
- The GPX 600 R spans the full 1985-1995 model year range covered in these specifications, while the GPX 750 R is listed only for 1986-1989, a notably shorter production window within the same era.
- A 24-month coolant service interval is consistent with conventional ethylene glycol-based coolants, which degrade in pH buffering capacity and corrosion inhibitor effectiveness over roughly two years regardless of mileage.