For the John Deere 6510L, coolant capacity is 3.4 gal (12.9 L). Coolant choice is listed as John Deere Cool-Gard II, with 40/60 coolant and water mix guidance.
John Deere 6510L Coolant Capacity Specs
| Coolant capacity | 3.4 gal (12.9 L) |
|---|---|
| Coolant type | John Deere Cool-Gard II |
| Antifreeze mix | 40/60 coolant and water mix |
| Engine horsepower | 114 hp |
| Engine displacement | 276 cu in (4.52 L) |
John Deere 6510L Coolant Capacity Guide
Coolant capacity guide
Compared with a broad 6 series guide, not the full tractor dataset.
John Deere 6510L Coolant Service Notes
| Coolant capacity note | For the John Deere 6510L, the coolant capacity is 3.4 gal (12.9 L). That is the buying and refill guide for a full cooling-system service |
|---|---|
| Coolant service note | For a full coolant service on the John Deere 6510L, plan around 3.4 gal (12.9 L) and match the listed coolant guidance: John Deere Cool-Gard II and 40/60 coolant and water mix |
| Coolant type note | The John Deere 6510L coolant type is John Deere Cool-Gard II. Wrong coolant chemistry can reduce corrosion, freeze and boil protection |
| Antifreeze mix note | The listed mix for the John Deere 6510L is 40/60 coolant and water mix. Keep the coolant strength in range after a drain, flush or top-up |
| Refill check | After a drain and refill on the John Deere 6510L, the cooling system can burp air. Recheck the level after the first warm-up and cool-down cycle |
| Engine context | The John Deere 6510L engine specs listed with this page are engine horsepower 114 hp and engine displacement 276 cu in (4.52 L). They help identify the machine, but they are not a substitute for the coolant capacity |
John Deere 6510L Coolant Capacity FAQ
How many litres of coolant does the John Deere 6510L take?
The cooling system capacity for the John Deere 6510L is 3.4 gal (12.9 L). This is the main refill figure for a drain, flush or coolant change
What coolant chemistry should the John Deere 6510L use?
For the John Deere 6510L, the coolant type is listed as John Deere Cool-Gard II. Avoid mixing incompatible coolant products
What mix ratio should I use when refilling the John Deere 6510L?
The John Deere 6510L uses 40/60 coolant and water mix where that mix is specified. Confirm the mix against your climate and manual
How do I avoid air pockets when refilling the John Deere 6510L coolant?
Fill the John Deere 6510L slowly, run it with the heater/thermostat cycle where applicable, let it cool and check the level again. That helps catch trapped air
Should old coolant be drained from the John Deere 6510L?
Flush the John Deere 6510L cooling system if the coolant is dirty, contaminated, badly diluted or overdue for service. A simple top-up does not fix old coolant chemistry
Mistakes do happen. Tractor coolant capacity and coolant type can change by year, market, engine, radiator setup and service procedure. Check the operator manual, service manual and official deere.com website before draining, flushing or refilling the cooling system.







