The John Deere Q 85 holds 6.67 gal (25.2 L) of fuel. The listed fuel type is diesel; half a tank is 3.33 gal (12.6 L), and an empty-to-full refill needs about 2 x 5-gal cans.
Fuel tank capacity6.67 gal (25.2 L)Empty-to-full tank amount
Half tank3.33 gal (12.6 L)Planning guide
5-gal cansabout 2 x 5-gal cans to have enough fuel from emptyPortable fuel estimate
Fuel typedieselUse correct fuel
John Deere Q 85 fuel tank capacity specs
Fuel tank capacity
6.67 gal (25.2 L)
Fuel capacity in litres
25.2 L
Half tank amount
3.33 gal (12.6 L)
5-gallon fuel cans
about 2 x 5-gal cans to have enough fuel from empty
10-litre fuel jugs
3 x 10-L jugs
Fuel type
diesel
Estimated full tank fuel weight
47 lb (21 kg) of diesel
Fuel capacity is a tank-size figure. Actual top-up amount and runtime depend on remaining fuel, workload, throttle use, terrain and machine condition.
John Deere Q 85 fuel planning notes
Fuel capacity note
For the John Deere Q 85, fuel tank capacity is 6.67 gal (25.2 L). This helps with fill-up planning, fuel storage and estimating how much fuel to bring to a job.
Refill planning
If carrying fuel to the John Deere Q 85, budget about 2 x 5-gal cans or 3 x 10-L jugs for a full empty-to-full refill.
Fuel type note
Fuel type matters on the John Deere Q 85. The listed type is diesel, so use the correct fuel before judging performance or runtime.
Full tank weight
A full tank on the John Deere Q 85 adds 47 lb (21 kg) of diesel. This is an estimate for fuel weight only, not total machine weight.
Fuel tank capacity guide
This model
6.66 gal
Guide low
4 gal
Guide typical
12 gal
Guide high
30 gal
Compared with a broad Small / older tractor guide, not the full tractor dataset.
John Deere Q 85 fuel capacity FAQ
What is the empty-to-full fuel amount for the John Deere Q 85?
The full fuel tank capacity for the John Deere Q 85 is 6.67 gal (25.2 L). Runtime depends on load, throttle and terrain.
How many litres is the John Deere Q 85 fuel tank?
The John Deere Q 85 holds about 25.2 litres of fuel when filled from empty.
How many litres is half a tank on the John Deere Q 85?
The John Deere Q 85 half-tank amount is 3.33 gal (12.6 L). If the machine is on a slope, the gauge may read differently.
How many 10-litre jugs fill the John Deere Q 85?
To fill the John Deere Q 85 from empty, budget about 2 x 5-gal cans or 3 x 10-L jugs. If it is only low rather than empty, reduce that amount.
Is the John Deere Q 85 diesel or gasoline?
Use diesel in the John Deere Q 85 where that listing applies. Wrong fuel can create a much bigger problem than a low tank.
Can I calculate John Deere Q 85 fuel burn from tank size?
The John Deere Q 85 tank size is 6.67 gal (25.2 L), but runtime changes with workload. Fuel use is higher with loader work, rotary cutting, baling, tilling, pulling, hill work or heavy PTO use than with light mowing, road travel or low-load utility work.
Is the John Deere Q 85 fuel tank small or large?
The John Deere Q 85 tank is a small-to-utility size at 6.67 gal (25.2 L). It is easy to plan around standard 5-gallon cans.
Official information note
Mistakes do happen. Check the operator manual, service manual and official deere.com website for official fuel capacity specifications.
