Morgan All models

Manual transmission fluid capacity & service interval

Morgan All models require manual transmission fluid with a capacity range of 1,6 to 1,9 liters. Service intervals consist of checking and changing the fluid every 8000 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
Plus 4 16 valve (1988-1993)
  • Use: Normal
  • Capacity 1,6 liter
  • Change 8000 km/ 6 months
  • Code: 5/1
Plus 4 (1985-1988)
  • Use: Normal
  • Capacity 1,8 liter
  • Change 8000 km/ 6 months
  • Code: 5/1
4/4 1600 (1981-1990)
  • Use: Normal
  • Capacity 1,9 liter
  • Check 8000 km/ 6 months
  • Code: 5/1
Plus 8 (1981-1993)
  • Use: Normal
  • Capacity 1,6 liter
  • Change 8000 km/ 6 months
  • Code: 5/1

Additional Notes

  • The Morgan 4/4 1600 (1981-1990) carries the largest manual transmission fluid capacity in the lineup at 1.9 liters, which is consistent with a full service fill figure for a gearbox of that era.
  • The Plus 4 (1985-1988) holds 1.8 liters of manual transmission fluid, placing it between the 4/4 1600 and the later 16-valve variant in terms of capacity.
  • Both the Plus 4 16 valve (1988-1993) and the Plus 8 (1981-1993) share an identical manual transmission fluid capacity of 1.6 liters, the lowest figure across all four configurations covered here.
  • All four configurations carry a normal use condition tied to an 8000 km or 6-month service interval, whichever comes first, reflecting a relatively short interval by modern standards and typical of manufacturer recommendations from the 1980s and early 1990s.
  • The 4/4 1600 specification lists a fluid check at 8000 km or 6 months under normal use, whereas the Plus 4, Plus 4 16 valve, and Plus 8 specifications call for a fluid change at the same interval, representing a procedural distinction between the 4/4 1600 and the remaining models.
  • The reduction in capacity from 1.9 liters on the 4/4 1600 to 1.6 liters on the Plus 4 16 valve reflects a difference in the gearbox units paired with each respective engine variant across the model range.

Other Systems