Volvo PV444/544 (EU)

Additional Notes

• The Volvo PV444/544 rear differential holds 1.3 liters of fluid across all listed configurations, spanning the PV444 from 1957-1958 through all PV544 and PV544 Sport variants up to 1965. A capacity in this range is typical of compact rear differentials found in small European passenger cars of the era.
• The 1.3-liter figure represents a service fill capacity, meaning the amount of fluid required when refilling a differential already installed in the vehicle, rather than a full overhaul or bench-fill quantity.
• All configurations share a fluid level check interval of 5,000 km under normal use conditions. At that interval, the check is intended to confirm the fluid remains at the correct level rather than to replace the fluid outright.
• The fluid change interval is set at 20,000 km for all listed variants under normal use conditions. At this mileage, the gear oil in the differential is considered due for a full drain and refill regardless of visual condition.
• The PV444 USA variant for 1957-1958 carries identical differential specifications to the standard European PV444 of the same years, with the same 1.3-liter capacity, 5,000 km check, and 20,000 km change interval.
• The PV544 Sport configurations for both 1958-1961 and 1961-1965 share the same rear differential capacity and service intervals as the standard PV544 variants of the corresponding periods, indicating no differential specification change between the Sport and non-Sport trims.
• The transition from the PV444 to the PV544 in 1958 brought no change to the rear differential fluid capacity or service intervals, with the 1.3-liter fill and 20,000 km change interval carrying over unchanged into the new model designation.