Ford F-Series Super Duty Class A Motorhome and Commercial Chassis (USA)

Differential fluid capacity & service interval

Ford F-Series Super Duty Class A Motorhome and Commercial Chassis (USA) differential fluid capacity ranges from 3,9 to 7,6 liters. Service intervals include 24000 miles/3 months, 50000 miles, and 105000 miles. The data covers 12 configurations.

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

TypeSpecifications
  • F-Series Super Duty Motorhome / Chassis (2019- )
  • Rear
  • Use: Normal
  • Capacity 6,6-7,6 liter
  • Change 105000 miles
  • Code: Dana S110/S130
  • F-Series Super Duty Motorhome / Chassis (2019- )
  • Rear
  • Use: Severe
  • Capacity 6,6-7,6 liter
  • Change 50000 miles
  • Code: Dana S110/S130
  • F-Series Super Duty Motorhome / Chassis (2019- )
  • Rear
  • Use: Very severe
  • Capacity 6,6-7,6 liter
  • Change 24000 miles/ 3 months
  • Code: Dana S110/S130
  • F-Series Super Duty Motorhome / Chassis (2019- )
  • Rear, conventional
  • Use: Normal
  • Capacity 3,9 liter
  • Change 105000 miles
  • Code: Dana M80
  • F-Series Super Duty Motorhome / Chassis (2019- )
  • Rear, conventional
  • Use: Severe
  • Capacity 3,9 liter
  • Change 50000 miles
  • Code: Dana M80
  • F-Series Super Duty Motorhome / Chassis (2019- )
  • Rear, conventional
  • Use: Very severe
  • Capacity 3,9 liter
  • Change 24000 miles/ 3 months
  • Code: Dana M80
  • F-Series Super Duty Motorhome / Chassis (2018-2020)
  • Rear
  • Use: Normal
  • Capacity 6,6-7,6 liter
  • Change 105000 miles
  • Code: Dana S110/S130
  • F-Series Super Duty Motorhome / Chassis (2018-2020)
  • Rear
  • Use: Severe
  • Capacity 6,6-7,6 liter
  • Change 50000 miles
  • Code: Dana S110/S130
  • F-Series Super Duty Motorhome / Chassis (2018-2020)
  • Rear
  • Use: Very severe
  • Capacity 6,6-7,6 liter
  • Change 24000 miles/ 3 months
  • Code: Dana S110/S130
  • F-Series Super Duty Motorhome / Chassis (2018-2020)
  • Rear, conventional
  • Use: Normal
  • Capacity 3,9 liter
  • Change 105000 miles
  • Code: Dana M80
  • F-Series Super Duty Motorhome / Chassis (2018-2020)
  • Rear, conventional
  • Use: Severe
  • Capacity 3,9 liter
  • Change 50000 miles
  • Code: Dana M80
  • F-Series Super Duty Motorhome / Chassis (2018-2020)
  • Rear, conventional
  • Use: Very severe
  • Capacity 3,9 liter
  • Change 24000 miles/ 3 months
  • Code: Dana M80

Additional Notes

  • The Ford F-Series Super Duty Class A Motorhome and Commercial Chassis rear differential carries a capacity range of 6.6 to 7.6 liters, a spread that reflects variation across axle assemblies rather than a single fixed fill volume.
  • A conventional rear differential configuration is listed separately with a fixed capacity of 3.9 liters, which is notably lower than the 6.6–7.6 liter range associated with the standard rear differential entries.
  • Under normal use conditions, both the standard and conventional rear differential configurations share a 105,000-mile change interval across the 2018-2020 model years.
  • Severe use conditions reduce the fluid change interval to 50,000 miles for both rear differential types, cutting the normal-use interval roughly in half.
  • Very severe use conditions carry the most demanding interval, set at 24,000 miles or 3 months, whichever comes first. The addition of a time-based threshold alongside a mileage limit distinguishes very severe service from the other two use categories.
  • The 24,000-mile or 3-month very severe interval applies equally to both the standard rear differential (6.6–7.6 liter capacity) and the conventional rear differential (3.9 liter capacity), with no differentiation between the two in terms of change frequency.
  • Specifications for the 2019 configuration mirror the 2018-2020 entries in both capacity values and all three use-condition intervals, with the same two differential types and identical figures appearing across both sets of rows.

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