The Kubota GL280 coolant capacity is listed as 1.6 gal (6.1 L). It also lists coolant type ethylene glycol-based coolant, Kubota Genuine Coolant, and ASTM D3306 compatible and antifreeze mix Kubota recommends a 50: 50 ethylene glycol-based coolant-to-water mix for the GL280 tractor to protect against freezing and overheating.
Kubota GL280 Coolant Capacity
| Coolant capacity | 1.6 gal (6.1 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 | Kubota recommends a 50: 50 ethylene glycol-based coolant-to-water mix for the GL280 tractor to protect against freezing and overheating |
| Engine horsepower | 27.6 hp (20.6 kW) |
| Engine displacement | 1.5 L (91.5 cu in) |
Coolant Capacity Comparison Chart
Coolant capacity comparison
Engine horsepower comparison
Engine displacement comparison
Kubota GL280 Coolant and Engine Notes
| Coolant capacity note | The Kubota GL280’s key coolant figure here is 1.6 gal (6.1 L) for coolant capacity. Use that before buying coolant or draining the system |
|---|---|
| Radiator capacity note | The Kubota GL280 radiator figure is 1.59 gal (6 L). Treat it as radiator context, not always the complete refill amount |
| Coolant type note | For the Kubota GL280, coolant type matters as much as capacity. The clean captured value is ethylene glycol-based coolant, Kubota Genuine Coolant, and ASTM D3306 compatible |
| Antifreeze mix note | The Kubota GL280 antifreeze mix is listed as Kubota recommends a 50: 50 ethylene glycol-based coolant-to-water mix for the GL280 tractor to protect against freezing and overheating. That is the normal protection range for freezing, boiling and corrosion control |
| Engine context note | For the Kubota GL280, the supporting engine specs are engine horsepower 27.6 hp (20.6 kW) and displacement 1.5 L (91.5 cu in). Use them as context beside the coolant capacity, not as a replacement for the manual |
| Refill note | The practical service move for the Kubota GL280: buy enough coolant for 1.6 gal (6.1 L), fill to spec, run the engine, then recheck the radiator and overflow bottle after cooling |
Kubota GL280 Coolant Capacity FAQ
What is the cooling system capacity of the Kubota GL280?
The Kubota GL280 cooling system capacity is shown as 1.6 gal (6.1 L). That is the number to use before draining the system.
What coolant type should I use in the Kubota GL280?
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 GL280?
Not for normal long-term use. The Kubota GL280 should use Kubota recommends a 50: 50 ethylene glycol-based coolant-to-water mix for the GL280 tractor to protect against freezing and overheating or the manual’s specified coolant mix so the system gets corrosion, freeze and boil protection.
Does old coolant matter in the Kubota GL280?
Yes. Old coolant can lose protection even if temperature looks normal. The listed service interval for the Kubota GL280 is the service interval in the operator manual.
What engine specs affect Kubota GL280 coolant capacity?
The captured engine context is horsepower 27.6 hp (20.6 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.
