The John Deere 8120T tractor has a published engine oil capacity of 22.7 US quarts (21.48 litres). For tractors in the 8.0–9.9 L engine-size class, that is around average versus a peer average of 24.3 quarts. For a routine oil change, having 5 × 1-gal jugs + 3 × 1-qt bottles (~0.3 qt spare) on hand covers the published capacity.
The John Deere 8120T has one published engine-oil capacity in this dataset. The listed capacity is 22.7 US qt (21.48 L). Oil capacity can vary by engine, fuel configuration and production revision, so confirm the specification for the exact tractor before servicing.
Tractor-engine benchmark
How this oil capacity compares
Peer values use tractors in the same engine-size class.
Engine oil capacity
Around average
22.7 qt
Low20 qt
This model22.7 qt
Average24.3 qt
High29.6 qt
Typical low and high use the 10th and 90th percentile of this engine-size group, which avoids one unusual tractor distorting the scale.
At a glance
Tractor profile
Oil capacity22.7 US qt (21.48 L)
Engine manufacturerJohn Deere
Fuel typeDiesel
Cylinders6
Displacement8.1 L
Tractor type—
Overview
Model information
Manufacturer
John Deere
Model
8120T
Category
Farm tractor
Model years
2002 – 2005
Tractor type
—
Engine / capacity variants
1
Full specifications
Technical details
Engine details
Engine manufacturerJohn Deere
Fuel typeDiesel
Cylinders6
Displacement8.1 L
Oil service data
Published capacity22.7 US qt (21.48 L)
US gallon equivalent5.67 gal
Oil to have on hand5 × 1-gal jugs + 3 × 1-qt bottles (~0.3 qt spare)
