The Ford 6640 tractor has a published engine oil capacity of 12.1 US quarts (11.45 litres). For tractors in the 5.0–5.9 L engine-size class, that is around average versus a peer average of 13.4 quarts. For a routine oil change, having 3 × 1-gal jugs + 1 × 1-qt bottle (~0.9 qt spare) on hand covers the published capacity.
The Ford 6640 has one published engine-oil capacity in this dataset. The listed capacity is 12.1 US qt (11.45 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
12.1 qt
Low9.5 qt
This model12.1 qt
Average13.4 qt
High17.3 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 capacity12.1 US qt (11.45 L)
Engine manufacturerFord Genesis
Fuel typeDiesel
Cylinders4
Displacement5 L
Tractor typeUtility Tractor
Overview
Model information
Manufacturer
Ford
Model
6640
Category
Farm tractor
Model years
1991 – 1995
Tractor type
Utility Tractor
Engine / capacity variants
1
Full specifications
Technical details
Engine details
Engine manufacturerFord Genesis
Fuel typeDiesel
Cylinders4
Displacement5 L
Oil service data
Published capacity12.1 US qt (11.45 L)
US gallon equivalent3.02 gal
Oil to have on hand3 × 1-gal jugs + 1 × 1-qt bottle (~0.9 qt spare)
