The John Deere 8120 fuel tank capacity is 160 gal (605.6 L). It is listed with diesel fuel, a half-tank amount of 80 gal (302.8 L), and about 32 x 5-gal cans.
Fuel tank capacity160 gal (605.6 L)Empty-to-full tank amount
Half tank80 gal (302.8 L)Planning guide
5-gal cansabout 32 x 5-gal cans to have enough fuel from emptyPortable fuel estimate
Fuel typedieselUse correct fuel
John Deere 8120 fuel tank capacity specs
Fuel tank capacity
160 gal (605.6 L)
Fuel capacity in litres
605.6 L
Half tank amount
80 gal (302.8 L)
5-gallon fuel cans
about 32 x 5-gal cans to have enough fuel from empty
10-litre fuel jugs
61 x 10-L jugs
Fuel type
diesel
Estimated full tank fuel weight
1,136 lb (515 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 8120 fuel planning notes
Fuel capacity note
The John Deere 8120 fuel tank is listed at 160 gal (605.6 L). Runtime changes heavily with load, throttle, terrain and implement use.
Refill planning
The John Deere 8120 is easiest to plan by container count: about 32 x 5-gal cans or 61 x 10-L jugs. Do not overfill past the filler-neck guidance.
Fuel type note
For the John Deere 8120, fuel choice is listed as diesel. Capacity tells you how much; fuel type tells you what to put in it.
Full tank weight
The John Deere 8120 tank capacity equals roughly 1,136 lb (515 kg) of diesel when full. This helps when thinking about transport weight and fuel handling.
Fuel tank capacity guide
This model
160 gal
Guide low
100 gal
Guide typical
155 gal
Guide high
230 gal
Compared with a broad 8 Series guide, not the full tractor dataset.
John Deere 8120 fuel capacity FAQ
How much fuel fits in the John Deere 8120 tank?
The John Deere 8120 tank holds 160 gal (605.6 L) from empty. Do not confuse full tank capacity with normal top-up amount.
What is the John Deere 8120 fuel capacity in litres?
In litres, the John Deere 8120 fuel capacity is about 605.6 L based on the listed 160 gal (605.6 L) tank size.
How many gallons is half a tank on the John Deere 8120?
Half a tank on the John Deere 8120 is about 80 gal (302.8 L). Treat it as a planning number because gauge accuracy varies.
How many 5-gallon cans fill the John Deere 8120?
From empty, the John Deere 8120 needs about 32 x 5-gal cans or 61 x 10-L jugs. If the tank already has fuel, you will need less.
What fuel type does the John Deere 8120 use?
The John Deere 8120 is listed for diesel. Confirm at the cap, decal or manual before refueling if the machine history is unclear.
How many hours will the John Deere 8120 run on 160 gal (605.6 L)?
The John Deere 8120 may run very different hours on the same 160 gal (605.6 L) tank depending on tillage, pulling, PTO load, hydraulic demand, transport speed and field conditions. Use fuel capacity for planning, not as a fuel-burn rating.
How does the John Deere 8120 tank size compare?
For the John Deere 8120, plan around pump or bulk-tank refueling because the listed capacity is 160 gal (605.6 L).
Official information note
Mistakes do happen. Check the operator manual, service manual and official deere.com website for official fuel capacity specifications.
