Hudson Super

Differential fluid capacity & service interval

Hudson Super differential fluid capacity ranges from 1,24 kg to 1,6 kg. Service intervals include checking at 1000 miles and changing at 10000 miles. The data covers 4 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
  • Super Eight (1948-1951)
  • Rear
  • Use: Normal
  • Capacity 1,6 kg
  • Check 1000 miles
  • Change 10000 miles
  • Super Six (1948-1951)
  • Rear
  • Use: Normal
  • Capacity 1,6 kg
  • Check 1000 miles
  • Change 10000 miles
  • Super Eight (1946-1947)
  • Rear
  • Use: Normal
  • Capacity 1,24 kg
  • Check 1000 miles
  • Change 10000 miles
  • Super Six (1946-1947)
  • Rear
  • Use: Normal
  • Capacity 1,24 kg
  • Check 1000 miles
  • Change 10000 miles

Additional Notes

  • The Hudson Super rear differential capacity is specified by weight rather than volume, which was a common practice for gear oil fills in mid-century American vehicles where mass measurement offered a more consistent fill standard regardless of fluid density.
  • For 1946-1947 Super Six and Super Eight configurations, the rear differential capacity is 1.24 kg, a figure shared identically across both engine variants in those model years.
  • The 1948-1951 Super Six and Super Eight both carry a rear differential capacity of 1.6 kg, representing an increase of 0.36 kg over the earlier 1946-1947 specification.
  • The capacity change between the 1946-1947 and 1948-1951 generations applies equally to both the Six and Eight engine variants, meaning the shift was tied to the model year revision rather than to a specific drivetrain configuration.
  • A 1,000-mile check interval is specified under normal use conditions across all four configurations, reflecting a break-in or early-service verification practice common to the era rather than a routine recurring service point.
  • The fluid change interval is set at 10,000 miles under normal use conditions for all configurations spanning 1946-1951, a figure consistent across both engine types and both generational capacity specifications.

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