Commer Light vans, PB
Differential fluid capacity & service interval
Commer Light vans, PB differential fluid capacity is 1 liter. Service intervals include checking at 8000 km and changing at 40000 km. Data covers 4 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
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Additional Notes
- The Commer Light vans, PB rear differential holds 1 liter of fluid across all four configurations covered in the 1967-1974 specifications, spanning both the 1500 and 2500 variants in petrol and diesel forms.
- A 1-liter differential capacity is characteristic of a compact rear axle unit, consistent with the light van classification of the PB series.
- The PBR designation covers the diesel-engined variants in both 1500 and 2500 form, while the PBC designation applies to the petrol-engined counterparts, yet both share identical differential fluid capacities and service intervals.
- The 8,000 km check interval applies under normal use conditions across all four configurations, indicating a relatively frequent inspection schedule relative to the 40,000 km change interval.
- The 40,000 km fluid change interval under normal use conditions is the same for the 1500 Diesel PBR, 1500 PBC, 2500 Diesel PBR, and 2500 PBC, suggesting no differentiation in rear differential service life between the 1500 and 2500 load ratings.
- The ratio of the check interval to the change interval is 1:5, meaning the differential fluid level is inspected five times before a full fluid change is due under normal use conditions.