The John Deere 4050 takes 18 quarts / 17.0 litres of engine oil with the filter.
John Deere 4050 Oil Capacity and Type
Engine Oil Capacity
18 qt / 17.0 L with filter
Recommended Oil Name
John Deere Plus-50 II
Recommended Oil Type
15W-40 heavy-duty diesel engine oil
Cold Weather Oil
10W-30 diesel engine oil
Engine
John Deere 466 ci / 7.6L 6-cylinder diesel
Cylinders
6-cylinder diesel
Engine Power
130 HP / 96.9 kW
Rated RPM
2200 rpm
Oil Change Interval
Every 200 to 250 hours
How Much Oil Does a John Deere 4050 Take?
The John Deere 4050 takes 18 quarts / 17.0 litres of engine oil when the oil filter is replaced.
Use John Deere Plus-50 II 15W-40 or another high-quality diesel-rated 15W-40 engine oil. For colder conditions, use a suitable 10W-30 diesel engine oil.
Fill slightly under the listed capacity first, run the engine, let it settle, then check the dipstick and top up to the full mark.
Quick Specs Overview
18 qtEngine Oil
15W-40Oil Type
200–250 hrsInterval
130 HPEngine Power
Best Oil to Use
John Deere Plus-50 II 15W-40 engine oil
Any quality diesel-rated 15W-40 oil meeting modern diesel specifications
10W-30 diesel oil for colder operating conditions
Replace the oil filter at every oil change
Oil Capacity Comparison
4050
18 qt
5100M
13.7 qt
5065E
9 qt
Compact Tractor
4–5 qt
Oil Change Intervals
Engine Oil
Every 200 to 250 hours
Engine Oil Filter
Replace every oil change
Fuel Filters
Every 500 hours
Air Filter
Clean regularly; replace as needed
Other John Deere 4050 Fluid Capacities
Engine Oil
18 qt / 17.0 L
Coolant Capacity
21 qt / 19.9 L
Fuel Tank
46 gal / 174.1 L
Hydraulic System – 2WD Power Shift
10.5 gal / 39.7 L
Hydraulic System – 4WD Power Shift
13.5 gal / 51.1 L
Hydraulic System – Quad-Range
16.0 gal / 60.6 L
Hydraulic Pump Flow
26.5 gpm / 100.3 L/min
John Deere 4050 Engine Specs
Engine
John Deere 466 ci diesel
Displacement
466 ci / 7.6 L
Cylinders
6-cylinder
Engine Power
130 HP / 96.9 kW
Compression Ratio
17.0:1
Rated RPM
2200 rpm
Cooling System
Liquid-cooled
Common Mistakes
Using petrol engine oil instead of diesel-rated oil
Skipping the oil filter replacement
Overfilling before checking the dipstick
Confusing engine oil capacity with hydraulic/transmission capacity
Assuming all transmission configurations use the same hydraulic capacity
Summary
The John Deere 4050 takes 18 quarts / 17.0 litres of engine oil with the filter. The best oil choice is John Deere Plus-50 II 15W-40 or another quality diesel-rated 15W-40 engine oil. The coolant capacity is 21 quarts / 19.9 litres, the fuel tank holds 46 gallons / 174.1 litres, and hydraulic capacity depends on whether the tractor has 2WD Power Shift, 4WD Power Shift, or Quad-Range.
