For the John Deere 5090R, coolant capacity is 4.25 gal (16.1 L). Coolant choice is listed as John Deere Cool-Gard II, with 40/60 coolant and water mix guidance.
John Deere 5090R Coolant Capacity Specs
| Coolant capacity | 4.25 gal (16.1 L) |
|---|---|
| Coolant type | John Deere Cool-Gard II |
| Antifreeze mix | 40/60 coolant and water mix |
John Deere 5090R Coolant Capacity Guide
Coolant capacity guide
Compared with a broad utility tractor guide, not the full tractor dataset.
John Deere 5090R Coolant Service Notes
| Coolant capacity note | The John Deere 5090R coolant capacity is 4.25 gal (16.1 L). Treat it as a cooling-system amount, not a radiator-only top-up amount |
|---|---|
| Coolant service note | For a full coolant service on the John Deere 5090R, plan around 4.25 gal (16.1 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 5090R 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 5090R 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 5090R, the cooling system can burp air. Recheck the level after the first warm-up and cool-down cycle |
John Deere 5090R Coolant Capacity FAQ
How much coolant is needed for a John Deere 5090R coolant change?
The cooling system capacity for the John Deere 5090R is 4.25 gal (16.1 L). This is the main refill figure for a drain, flush or coolant change
Can I use John Deere Cool-Gard in the John Deere 5090R?
For the John Deere 5090R, 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 5090R?
Use the listed 40/60 coolant and water mix mix when refilling the John Deere 5090R. Too much water weakens protection; too much concentrate can also reduce cooling performance
Should I bleed air after changing coolant in the John Deere 5090R?
Fill the John Deere 5090R slowly, run it with the heater/thermostat cycle where applicable, let it cool and check the level again. That helps catch trapped air
When should I flush the John Deere 5090R cooling system?
Flush the John Deere 5090R 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.

