The John Deere Q 85 takes 10.22 gal (38.7 L) of coolant. After refilling, run the engine, let it cool and confirm the final level.
Coolant capacity10.22 gal (38.7 L)Cooling system refill amount
John Deere Q 85 Coolant Capacity Specs
Coolant capacity
10.22 gal (38.7 L)
Engine displacement
169.4 cu in (2.78 L)
John Deere Q 85 Coolant Capacity Guide
Coolant capacity guide
This model
10.22 gal
Class low
0.8 gal
Class typical
2.5 gal
Class high
5 gal
Compared with a broad older small tractor guide, not the full tractor dataset.
John Deere Q 85 Coolant Service Notes
Coolant capacity note
The useful service number here is 10.22 gal (38.7 L). Keep some extra coolant available because trapped air can lower the level after the first warm-up
Coolant service note
Use 10.22 gal (38.7 L) as the refill guide for the John Deere Q 85. The final level should still be confirmed at the radiator or overflow bottle
Refill check
Use the 10.22 gal (38.7 L) capacity to buy enough coolant for the John Deere Q 85, but finish the job by checking the actual level marks
Engine context
For comparison, the John Deere Q 85 engine details listed here are engine displacement 169.4 cu in (2.78 L). The coolant capacity remains the service number to use for refilling
John Deere Q 85 Coolant Capacity FAQ
How much coolant should I buy for the John Deere Q 85?
The John Deere Q 85 takes 10.22 gal (38.7 L) of coolant. Final level can settle after trapped air leaves the cooling system
Do I fill the John Deere Q 85 exactly to capacity or check the level marks?
After a coolant change on the John Deere Q 85, check for leaks, watch temperature and recheck the level once the engine cools down
Can I just add coolant to the John Deere Q 85 if the level is low?
Low level, bad smell, rust, sludge, oil film or overheating are signs to inspect the John Deere Q 85 cooling system rather than only topping it up
Official information note
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.
