The John Deere 6400 takes 12.8 quarts / 12.1 litres of engine oil.
John Deere 6400 Oil Capacity and Type
Engine Oil Capacity
12.8 qt / 12.1 L
Recommended Oil Name
John Deere Plus-50 II engine oil
Recommended Oil Type
15W-40 diesel engine oil
Cold Weather Oil
10W-30 diesel engine oil
Engine
John Deere CD4045, 4.5L turbocharged diesel
Cylinders
4-cylinder diesel
Rated RPM
2300 rpm
Oil Change Interval
Every 250 hours or annually
How Much Oil Does a John Deere 6400 Take?
The John Deere 6400 takes 12.8 quarts / 12.1 litres of engine oil.
Use John Deere Plus-50 II 15W-40 or another quality diesel-rated 15W-40 engine oil. In colder conditions, 10W-30 diesel engine oil may be more suitable.
Fill slightly under the listed capacity first, run the engine, let it settle, then check the dipstick and top up if needed.
Quick Specs Overview
12.8 qtEngine Oil
15W-40Oil Type
250 hrsInterval
85 HPPTO Power
Best Oil to Use
John Deere Plus-50 II 15W-40 engine oil
Any diesel-rated 15W-40 oil meeting the correct API diesel specification
10W-30 diesel engine oil for colder operating conditions
Replace the engine oil filter during oil changes
Other John Deere 6400 Fluid Capacities
Engine Oil
12.8 qt / 12.1 L
Fuel Tank – ROPS
29 gal / 109.8 L
Fuel Tank – Cab
43.6 gal / 165.0 L
Coolant – ROPS
14.5 qt / 13.7 L
Coolant – Cab
18.5 qt / 17.5 L
Hydraulic System
Closed-center PFC system
Hydraulic Flow
18.7 gpm / 70.8 L/min standard
Hydraulic Flow Optional
25 gpm / 94.6 L/min optional
Oil Capacity Comparison
6400
12.8 qt
5065E
9 qt
Compact Tractor
4–5 qt
John Deere 6400 Engine Specs
Engine
John Deere CD4045
Engine Type
Turbocharged diesel
Displacement
276 ci / 4.5 L
Cylinders
4-cylinder
Rated RPM
2300 rpm
PTO Power Claimed
85 HP / 63.4 kW
PTO Power Tested
90.1 HP / 67.2 kW
Summary
The John Deere 6400 takes 12.8 quarts / 12.1 litres of engine oil. The best match is John Deere Plus-50 II 15W-40 diesel engine oil. For cold weather, use a suitable 10W-30 diesel engine oil. The ROPS model has a 29 gallon fuel tank, while the cab model has a larger 43.6 gallon fuel tank.
