John Deere 40R Fuel Tank Capacity

Quick answer

The John Deere 40R fuel tank capacity is 10.49 gal (39.7 L). It is listed with diesel fuel, a half-tank amount of 5.24 gal (19.9 L), and about 3 x 5-gal cans.

Fuel tank capacity10.49 gal (39.7 L)Empty-to-full tank amount

Half tank5.24 gal (19.9 L)Planning guide

5-gal cansabout 3 x 5-gal cans to have enough fuel from emptyPortable fuel estimate

Fuel typedieselUse correct fuel

John Deere 40R fuel tank capacity specs

Fuel tank capacity	10.49 gal (39.7 L)
Fuel capacity in litres	39.7 L
Half tank amount	5.24 gal (19.9 L)
5-gallon fuel cans	about 3 x 5-gal cans to have enough fuel from empty
10-litre fuel jugs	4 x 10-L jugs
Fuel type	diesel
Estimated full tank fuel weight	74 lb (34 kg) of diesel
Engine horsepower	33 hp
Engine displacement	94.7 cu in (1.55 L)
Fuel capacity per horsepower	0.318 gal per hp

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 40R fuel planning notes

Fuel capacity note	For the John Deere 40R, fuel tank capacity is 10.49 gal (39.7 L). This helps with fill-up planning, fuel storage and estimating how much fuel to bring to a job.
Refill planning	The John Deere 40R is easiest to plan by container count: about 3 x 5-gal cans or 4 x 10-L jugs. Do not overfill past the filler-neck guidance.
Fuel type note	Fuel type matters on the John Deere 40R. The listed type is diesel, so use the correct fuel before judging performance or runtime.
Full tank weight	The John Deere 40R tank capacity equals roughly 74 lb (34 kg) of diesel when full. This helps when thinking about transport weight and fuel handling.
Engine context	The engine context for the John Deere 40R is engine horsepower 33 hp, engine displacement 94.7 cu in (1.55 L), and tank-to-power ratio 0.318 gal per hp. Use this for comparison only; runtime still depends on workload.

Fuel tank capacity guide

This model

10.49 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 40R fuel capacity FAQ

What is the empty-to-full fuel amount for the John Deere 40R?

The John Deere 40R tank holds 10.49 gal (39.7 L) from empty. Do not confuse full tank capacity with normal top-up amount.

How many litres is the John Deere 40R fuel tank?

In litres, the John Deere 40R fuel capacity is about 39.7 L based on the listed 10.49 gal (39.7 L) tank size.

What is half a tank on the John Deere 40R?

The John Deere 40R half-tank amount is 5.24 gal (19.9 L). If the machine is on a slope, the gauge may read differently.

Can I fill the John Deere 40R from 5-gallon cans?

To fill the John Deere 40R from empty, budget about 3 x 5-gal cans or 4 x 10-L jugs. If it is only low rather than empty, reduce that amount.

Which fuel is listed for the John Deere 40R?

Use diesel in the John Deere 40R where that listing applies. Wrong fuel can create a much bigger problem than a low tank.

Can the John Deere 40R run all day on one tank?

The John Deere 40R tank size is 10.49 gal (39.7 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.