John Deere 4066M Fuel Tank Capacity

Quick answer

The John Deere 4066M holds 13.5 gal (51.1 L) of fuel. The listed fuel type is diesel; half a tank is 6.75 gal (25.6 L), and an empty-to-full refill needs about 3 x 5-gal cans.

Fuel tank capacity13.5 gal (51.1 L)Empty-to-full tank amount

Half tank6.75 gal (25.6 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 4066M fuel tank capacity specs

Fuel tank capacity	13.5 gal (51.1 L)
Fuel capacity in litres	51.1 L
Half tank amount	6.75 gal (25.6 L)
5-gallon fuel cans	about 3 x 5-gal cans to have enough fuel from empty
10-litre fuel jugs	6 x 10-L jugs
Fuel type	diesel
Estimated full tank fuel weight	96 lb (43 kg) of diesel
Engine model	Yanmar 4TNV
Engine horsepower	65 hp
Engine displacement	128.1 cu in (2.1 L)
Fuel capacity per horsepower	0.208 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 4066M fuel planning notes

Fuel capacity note	The main fuel number for the John Deere 4066M is 13.5 gal (51.1 L). Use it as the empty-to-full tank amount, not as a guaranteed runtime figure.
Refill planning	If carrying fuel to the John Deere 4066M, budget about 3 x 5-gal cans or 6 x 10-L jugs for a full empty-to-full refill.
Fuel type note	The listed fuel type for the John Deere 4066M is diesel. Match the fuel type before filling; do not assume every John Deere machine uses diesel.
Full tank weight	A full tank on the John Deere 4066M adds 96 lb (43 kg) of diesel. This is an estimate for fuel weight only, not total machine weight.
Engine context	For comparison, the John Deere 4066M engine details listed here are engine model Yanmar 4TNV, engine horsepower 65 hp, engine displacement 128.1 cu in (2.1 L), and tank-to-power ratio 0.208 gal per hp. Tank size alone does not predict fuel use per hour.

Fuel tank capacity guide

This model

13.5 gal

Guide low

6 gal

Guide typical

14 gal

Guide high

30 gal

Compared with a broad Compact / small utility tractor guide, not the full tractor dataset.

John Deere 4066M fuel capacity FAQ

What is the John Deere 4066M fuel tank capacity?

The full fuel tank capacity for the John Deere 4066M is 13.5 gal (51.1 L). Runtime depends on load, throttle and terrain.

What is the litre conversion for the John Deere 4066M fuel tank?

The John Deere 4066M holds about 51.1 litres of fuel when filled from empty.

How much fuel is half full on the John Deere 4066M?

A half tank on the John Deere 4066M works out to roughly 6.75 gal (25.6 L), based on the listed 13.5 gal (51.1 L) full capacity.

How many fuel containers does the John Deere 4066M need from empty?

The John Deere 4066M fuel capacity works out to about 3 x 5-gal cans or 6 x 10-L jugs. A normal top-up usually takes less.

Does the John Deere 4066M use diesel fuel?

For the John Deere 4066M, fuel type is listed as diesel. Do not assume diesel or gasoline without checking the machine label and manual.

Does fuel tank capacity tell me the John Deere 4066M runtime?

Runtime depends on loader work, mowing, PTO implements, slopes, travel speed, throttle and engine condition. The 13.5 gal (51.1 L) tank gives the storage amount, not a fixed hour rating.