Iveco Massif, 33S15
Differential fluid capacity & service interval
Iveco Massif and 33S15 require differential fluid with a capacity range of 1,75 to 2,3 liters. Service intervals occur every 40000 km, 24 months, or 800 hours. The 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 Iveco Massif front differential holds 1.75 liters across both the 3.0 HPI (107 kW) and 3.0 HPT (129 kW) engine variants, indicating a shared front axle assembly regardless of output rating.
- The rear differential carries a noticeably larger fluid capacity of 2.3 liters compared to the front unit's 1.75 liters, reflecting the greater size and load-bearing role of the rear axle housing.
- All four differential fluid specifications share an identical service interval of 40,000 km, 24 months, or 800 hours under normal use conditions, whichever threshold is reached first.
- The triple-trigger interval structure — combining distance, time, and operating hours — is typical of commercial and off-road vehicles where engine hours can accumulate rapidly without proportional road distance, making the 800-hour limit particularly relevant in low-speed or stationary working conditions.
- The 24-month time limit applies independently of mileage, meaning a low-mileage Massif still reaches a fluid change point after two years of normal use.
- Both the HPI and HPT variants share identical front and rear differential capacities, so fluid volume requirements do not differ between the two power outputs for the 2008-2011 model years.