The Kubota GL260 coolant capacity is listed as 1.59 gal (6 L). It also lists coolant type ethylene glycol-based coolant, Kubota Genuine Coolant, and ASTM D3306 compatible and antifreeze mix 50/50 coolant and distilled water mix.
Kubota GL260 Coolant Capacity
| Coolant capacity | 1.59 gal (6 L) |
|---|---|
| Cooling system capacity | 1.59 gal (6 L) |
| Radiator capacity | 1.59 gal (6 L) |
| Coolant type | ethylene glycol-based coolant, Kubota Genuine Coolant, and ASTM D3306 compatible |
| Antifreeze mix | 50/50 coolant and distilled water mix |
| Coolant change interval | every 700 hours |
| Engine horsepower | 25.6 hp (19.1 kW) |
| Engine displacement | 1.5 L (91.5 cu in) |
Coolant Capacity Comparison Chart
Coolant capacity comparison
Engine horsepower comparison
Engine displacement comparison
Kubota GL260 Coolant and Engine Notes
| Coolant capacity note | The Kubota GL260 coolant spec points to 1.59 gal (6 L). Do not rely on the radiator-only amount if the full cooling-system capacity is available |
|---|---|
| Radiator capacity note | For the Kubota GL260, the captured radiator capacity is 1.59 gal (6 L). If you are doing a full drain, check the full cooling-system capacity too |
| Coolant type note | Coolant type for the Kubota GL260 is listed as ethylene glycol-based coolant, Kubota Genuine Coolant, and ASTM D3306 compatible. The safest move is to use coolant that matches the manual’s spec rather than mixing random formulas |
| Antifreeze mix note | For the Kubota GL260, the captured mix is 50/50 coolant and distilled water mix. Straight water is not the right long-term answer unless you are only flushing the system |
| Coolant change interval note | Coolant service for the Kubota GL260 is listed as every 700 hours. If the service history is unknown, a fresh drain and refill is usually the cleaner move |
| Engine context note | Engine context for the Kubota GL260: engine horsepower 25.6 hp (19.1 kW) and displacement 1.5 L (91.5 cu in). Engine size helps explain why coolant capacity changes between models |
| Refill note | When refilling the Kubota GL260, use 1.59 gal (6 L) as the planning number and 50/50 coolant and distilled water mix as the mixture guide. Recheck the level after the thermostat opens |
Kubota GL260 Coolant Capacity FAQ
What is the cooling system capacity of the Kubota GL260?
The Kubota GL260 cooling system capacity is shown as 1.59 gal (6 L). That is the number to use before draining the system.
What coolant type should I use in the Kubota GL260?
Use ethylene glycol-based coolant, Kubota Genuine Coolant, and ASTM D3306 compatible. The blunt rule is simple: match the manual’s coolant spec and do not mix unknown coolant formulas.
Should I use straight water in the Kubota GL260?
Not for normal long-term use. The Kubota GL260 should use 50/50 coolant and distilled water mix or the manual’s specified coolant mix so the system gets corrosion, freeze and boil protection.
Does old coolant matter in the Kubota GL260?
Yes. Old coolant can lose protection even if temperature looks normal. The listed service interval for the Kubota GL260 is every 700 hours.
What engine specs affect Kubota GL260 coolant capacity?
The captured engine context is horsepower 25.6 hp (19.1 kW) and displacement 1.5 L (91.5 cu in). Engine size is one reason coolant capacity changes between tractors.
Mistakes do happen. Tractor coolant specs can change by year, market, engine, radiator, cab/heater setup and service procedure. Please check the operator manual, decal information and official kubotausa.com website for official information before draining or refilling the cooling system.
