Leyland Leyland Synchro

Differential fluid capacity & service interval

Leyland Synchro uses differential fluid with a capacity of 6 liters. Service intervals include checking at 50 hours and changing at 1200 hours. The data covers 3 configurations.

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

TypeSpecifications
  • 602, 604 (1980-1982)
  • Front
  • Use: Normal
  • Capacity 6 liter
  • Check 50 hours
  • Change 1200 hours
  • Code: (4x4)
  • 702, 704 (1980-1982)
  • Front
  • Use: Normal
  • Capacity 6 liter
  • Check 50 hours
  • Change 1200 hours
  • Code: (4x4)
  • 802, 804 (1980-1982)
  • Front
  • Use: Normal
  • Capacity 6 liter
  • Check 50 hours
  • Code: (4x4)

Additional Notes

  • The front differential on the Leyland Synchro 602 and 604 holds 6 liters of fluid, a capacity figure that reflects a service fill level rather than a full overhaul quantity.
  • The 702 and 704 share the same 6-liter front differential capacity as the 602 and 604, indicating a common differential housing across those four model variants for 1980-1982.
  • A check interval of 50 hours applies to the front differential across the 602, 604, 702, 704, 802, and 804 under normal use conditions.
  • The 602 and 604 carry a front differential fluid change interval of 1200 hours under normal use conditions.
  • The 702 and 704 also specify a 1200-hour front differential change interval under normal use conditions, matching the interval assigned to the 602 and 604.
  • The 802 and 804 share the 6-liter front differential capacity with the smaller-numbered variants, despite being positioned as higher models within the 1980-1982 Leyland Synchro range.
  • No fluid change interval is listed for the 802 and 804 front differential, whereas the 602, 604, 702, and 704 all carry a defined 1200-hour change interval under normal use conditions.

Other Systems