Morris Marina, ADO28

Differential fluid capacity & service interval

Morris Marina, ADO28 uses differential fluid with a capacity of 0,71 liter. Service intervals consist of 10000 km or 6 months. The data covers 4 configurations.

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

TypeSpecifications
  • Marina 1.3 (1975-1980)
  • Rear
  • Use: Normal
  • Capacity 0,71 liter
  • Check 10000 km/ 6 months
  • Marina 1.8 (1975-1978)
  • Rear
  • Use: Normal
  • Capacity 0,71 liter
  • Check 10000 km/ 6 months
  • Marina 1.3 (1971-1975)
  • Rear
  • Use: Normal
  • Capacity 0,71 liter
  • Check 10000 km/ 6 months
  • Marina 1.8 (1971-1975)
  • Rear
  • Use: Normal
  • Capacity 0,71 liter
  • Check 10000 km/ 6 months

Additional Notes

  • The Morris Marina ADO28 rear differential holds 0.71 liter across all listed configurations, a figure typical of compact rear axle units where the housing volume is kept small to reduce unsprung weight.
  • The 1.3-liter variant covering 1971-1975 shares the same 0.71-liter rear differential capacity as the 1.8-liter variant of the same period, indicating a common axle assembly regardless of engine displacement.
  • The 1.3-liter variant spanning 1975-1980 and the 1.8-liter variant spanning 1975-1978 both retain the 0.71-liter capacity, showing no change in differential specification between the earlier and later production phases.
  • All four configurations carry a check interval of 10,000 km or 6 months under normal use conditions, whichever comes first, reflecting a routine inspection schedule rather than a full fluid replacement interval.
  • A 0.71-liter capacity is consistent with a service fill level, meaning the figure represents the amount of fluid the differential holds during normal operation rather than a larger overhaul or flush quantity.

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