The Kubota GT-23 coolant capacity is listed as 1.66 gal (6.3 L). It also lists coolant type ethylene glycol-based coolant and ASTM D3306 compatible and antifreeze mix 50/50 coolant and water mix.
Kubota GT-23 Coolant Capacity
| Coolant capacity | 1.59 gal (6 L) |
|---|---|
| Cooling system capacity | 1.66 gal (6.3 L) |
| Coolant type | ethylene glycol-based coolant and ASTM D3306 compatible |
| Antifreeze mix | 50/50 coolant and water mix |
| Coolant change interval | every 700 hours |
| Engine horsepower | 22 hp (16.4 kW) |
| Engine displacement | 1.5 L (91.5 cu in) |
Coolant Capacity Comparison Chart
Coolant capacity comparison
Engine horsepower comparison
Engine displacement comparison
Kubota GT-23 Coolant and Engine Notes
| Coolant capacity note | The Kubota GT-23’s key coolant figure here is 1.66 gal (6.3 L) for cooling system capacity. Use that before buying coolant or draining the system |
|---|---|
| Coolant type note | For the Kubota GT-23, coolant type matters as much as capacity. The clean captured value is ethylene glycol-based coolant and ASTM D3306 compatible |
| Antifreeze mix note | The Kubota GT-23 antifreeze mix is listed as 50/50 coolant and water mix. That is the normal protection range for freezing, boiling and corrosion control |
| Coolant change interval note | For the Kubota GT-23, the service interval is listed as every 700 hours. Time matters too, not just engine hours |
| Engine context note | For the Kubota GT-23, the supporting engine specs are engine horsepower 22 hp (16.4 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 GT-23: buy enough coolant for 1.66 gal (6.3 L), fill to spec, run the engine, then recheck the radiator and overflow bottle after cooling |
Kubota GT-23 Coolant Capacity FAQ
What is the cooling system capacity of the Kubota GT-23?
The Kubota GT-23 cooling system capacity is shown as 1.66 gal (6.3 L). That is the number to use before draining the system.
What coolant type should I use in the Kubota GT-23?
Use ethylene glycol-based 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 GT-23?
Not for normal long-term use. The Kubota GT-23 should use 50/50 coolant and 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 GT-23?
Yes. Old coolant can lose protection even if temperature looks normal. The listed service interval for the Kubota GT-23 is every 700 hours.
What engine specs affect Kubota GT-23 coolant capacity?
The captured engine context is horsepower 22 hp (16.4 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.
