Alfa Romeo Montreal, 105 (EU)
Differential fluid capacity & service interval
Alfa Romeo Montreal, 105 (EU) differential fluid capacity is 2,3 liters. Check intervals are 6000 km and change intervals are 18000 km. The data covers 1 configuration.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
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Additional Notes
- The rear limited slip differential on the Alfa Romeo Montreal (105) carries a fluid capacity of 2.3 liters, which is consistent with a service fill volume for a rear axle differential unit of this type rather than a full overhaul drain-and-refill figure.
- Under normal use conditions, the check interval for the differential fluid is set at 6,000 km, meaning the fluid level and condition are to be inspected at that mileage point before the full change interval is reached.
- The change interval under normal use is specified at 18,000 km, placing the full fluid replacement at three times the frequency of the check interval across the 1970-1977 production span.
- The designation of the differential as a limited slip unit is relevant to fluid specification, as limited slip differentials generally require lubricants formulated with friction modifiers to function correctly, distinguishing the fluid requirements from those of an open differential.