Fuel tank capacity for the John Deere X729 is 5.2 gal (19.7 L). That equals 2.6 gal (9.8 L) at half tank, with diesel listed as the fuel type.
John Deere X729 fuel tank capacity specs
| Fuel tank capacity | 5.2 gal (19.7 L) |
|---|---|
| Fuel capacity in litres | 19.7 L |
| Half tank amount | 2.6 gal (9.8 L) |
| 5-gallon fuel cans | about 2 x 5-gal cans to have enough fuel from empty |
| 10-litre fuel jugs | 2 x 10-L jugs |
| Fuel type | diesel |
| Estimated full tank fuel weight | 37 lb (17 kg) of diesel |
| Engine horsepower | 27 hp |
| Engine displacement | 45.5 cu in (0.75 L) |
| Fuel capacity per horsepower | 0.193 gal per hp |
John Deere X729 fuel planning notes
| Fuel capacity note | For the John Deere X729, fuel tank capacity is 5.2 gal (19.7 L). This helps with fill-up planning, fuel storage and estimating how much fuel to bring to a job. |
|---|---|
| Refill planning | For an empty-to-full refill on the John Deere X729, plan for about 2 x 5-gal cans or 2 x 10-L jugs. Real fill amount can be slightly lower if fuel remains in the tank. |
| Fuel type note | Fuel type matters on the John Deere X729. The listed type is diesel, so use the correct fuel before judging performance or runtime. |
| Full tank weight | For transport and storage planning, the John Deere X729 full tank fuel load is roughly 37 lb (17 kg) of diesel. Actual weight varies slightly by fuel blend and temperature. |
| Engine context | The John Deere X729 engine specs listed with this page are engine horsepower 27 hp, engine displacement 45.5 cu in (0.75 L), and tank-to-power ratio 0.193 gal per hp. They help compare models but are not a fuel-consumption rating. |
Fuel tank capacity guide
Compared with a broad Lawn / garden tractor guide, not the full tractor dataset.
John Deere X729 fuel capacity FAQ
What is the full tank capacity for the John Deere X729?
The full fuel tank capacity for the John Deere X729 is 5.2 gal (19.7 L). Runtime depends on load, throttle and terrain.
How many litres is the John Deere X729 fuel tank?
The John Deere X729 fuel tank is 5.2 gal (19.7 L), which converts to about 19.7 litres.
What is the half-tank amount for the John Deere X729?
A half tank on the John Deere X729 works out to roughly 2.6 gal (9.8 L), based on the listed 5.2 gal (19.7 L) full capacity.
How many fuel cans are needed to fill the John Deere X729?
The John Deere X729 fuel capacity works out to about 2 x 5-gal cans or 2 x 10-L jugs. A normal top-up usually takes less.
Does the John Deere X729 use gasoline?
For the John Deere X729, fuel type is listed as diesel. Do not assume diesel or gasoline without checking the machine label and manual.
How far can the John Deere X729 go on a tank?
The John Deere X729 tank size is 5.2 gal (19.7 L), but runtime changes with workload. Fuel use is higher with long grass, wet grass, hills, bagging, towing or high throttle than with short grass, flat ground and steady mowing.
Is the John Deere X729 fuel tank small or large?
The John Deere X729 has a small fuel tank at 5.2 gal (19.7 L), so one or two portable cans may cover a full empty-to-full refill.
Mistakes do happen. Check the operator manual, service manual and official deere.com website for official fuel capacity specifications.

