The John Deere 6600 holds 20 gal (75.7 L) of fuel. The listed fuel type is diesel; half a tank is 10 gal (37.9 L), and an empty-to-full refill needs about 4 x 5-gal cans.
Fuel tank capacity20 gal (75.7 L)Empty-to-full tank amount
Half tank10 gal (37.9 L)Planning guide
5-gal cansabout 4 x 5-gal cans to have enough fuel from emptyPortable fuel estimate
Fuel typedieselUse correct fuel
John Deere 6600 fuel tank capacity specs
Fuel tank capacity
20 gal (75.7 L)
Fuel capacity in litres
75.7 L
Half tank amount
10 gal (37.9 L)
5-gallon fuel cans
about 4 x 5-gal cans to have enough fuel from empty
10-litre fuel jugs
8 x 10-L jugs
Fuel type
diesel
Estimated full tank fuel weight
142 lb (64 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 6600 fuel planning notes
Fuel capacity note
The useful refueling spec here is 20 gal (75.7 L). It tells you tank size; it does not guarantee hours of operation under load.
Refill planning
If carrying fuel to the John Deere 6600, budget about 4 x 5-gal cans or 8 x 10-L jugs for a full empty-to-full refill.
Fuel type note
The John Deere 6600 fuel type is diesel. Wrong fuel is a much bigger problem than a slightly short top-up.
Full tank weight
A full tank on the John Deere 6600 adds 142 lb (64 kg) of diesel. This is an estimate for fuel weight only, not total machine weight.
Fuel tank capacity guide
This model
20 gal
Guide low
30 gal
Guide typical
55 gal
Guide high
90 gal
Compared with a broad 6 Series guide, not the full tractor dataset.
John Deere 6600 fuel capacity FAQ
What fuel tank size is listed for the John Deere 6600?
The empty-to-full fuel amount for the John Deere 6600 is 20 gal (75.7 L). If the gauge is not on empty, it will take less.
How many litres of fuel does the John Deere 6600 hold?
The John Deere 6600 holds about 75.7 litres of fuel when filled from empty.
How many litres is half a tank on the John Deere 6600?
For the John Deere 6600, half of the listed fuel capacity is 10 gal (37.9 L). The actual gauge reading may not be perfectly linear.
How many 10-litre jugs fill the John Deere 6600?
For an empty-to-full refill on the John Deere 6600, plan for about 4 x 5-gal cans or 8 x 10-L jugs. Stop at the correct fill level rather than forcing extra fuel in.
Is the John Deere 6600 diesel or gasoline?
The listed fuel type for the John Deere 6600 is diesel. Match the correct fuel before filling the tank.
Can I calculate John Deere 6600 fuel burn from tank size?
You cannot get a reliable runtime from tank size alone. The John Deere 6600 fuel capacity is 20 gal (75.7 L), but fuel burn depends on field work.
Is the John Deere 6600 fuel tank big enough for regular use?
The John Deere 6600 falls into a utility tractor tank range at 20 gal (75.7 L). Use that to decide whether portable cans or pump refueling makes more sense.
Official information note
Mistakes do happen. Check the operator manual, service manual and official deere.com website for official fuel capacity specifications.
