The J.I. Case 311 tractor has a published engine oil capacity of 4 US quarts (3.79 litres). For tractors in the 2.0–2.9 L engine-size class, that is very low versus a peer average of 6.7 quarts. For a routine oil change, having 1 × 1-gal jug (about exact) on hand covers the published capacity.
The J.I. Case 311 has one published engine-oil capacity in this dataset. The listed capacity is 4 US qt (3.79 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
Very low
4 qt
Low5 qt
This model4 qt
Average6.7 qt
High9 qt
Typical low and high use the 10th and 90th percentile of this engine-size group, which avoids one unusual tractor distorting the scale.
