Tata Hexa

Additional Notes

• The Tata Hexa carries a uniform rear differential fluid capacity of 1.8 liters across all 2.2 Varicor engine variants, both 110 kW and 115 kW, and across all model years from 2017-2020. A capacity figure at this level is consistent with a service fill specification, meaning the volume required to refill a unit already installed in the vehicle rather than a full overhaul bench fill.
• The front differential on the 115 kW AWD configuration also holds 1.8 liters, matching the rear differential capacity exactly. Both axles share the same check and change intervals as well, meaning the AWD drivetrain applies a single consistent service volume to all four differential positions.
• All configurations across 2017-2020 share a check interval of every 10,000 km or 6 months, whichever comes first. A time-based interval running alongside a distance-based one is standard practice for vehicles that may accumulate low mileage over extended periods, ensuring fluid condition is still evaluated on a calendar basis.
• Under normal use conditions, the standard rear differential change interval for the 110 kW variant covering 2017-2019 is 80,000 km or 48 months. For the 2019-2020 model year range of the same engine output, the distance interval remains 80,000 km but the time limit extends to 60 months, representing a 12-month increase in the calendar-based change period.
• The 115 kW non-AWD variant maintains a normal-use change interval of 80,000 km or 48 months across both the 2017-2019 and 2019-2020 model year ranges, with no equivalent time extension seen in the 110 kW 2019-2020 update. The 115 kW AWD configurations for 2017-2019 and 2019-2020 also retain the 80,000 km or 48-month interval without change.
• Under severe use conditions, all variants across all model years specify a change interval of 50,000 km or 36 months. Severe use typically refers to operating conditions such as frequent towing, off-road driving, extreme temperatures, or repeated short trips, all of which accelerate fluid degradation and justify the shorter interval compared to normal use.
• A separate severe-use first-change-only interval of 20,000 km or 18 months applies to all configurations. A first-change-only designation addresses the break-in period of differential components, during which metal particles and manufacturing residues can contaminate fresh fluid more rapidly, warranting an earlier initial drain before returning to the standard severe-use schedule.
• The limited slip differential variant carries the same 1.8-liter capacity and identical check and change intervals as the standard open rear differential across every configuration and model year. A limited slip differential uses a clutch pack or friction-based mechanism to bias torque between wheels, and while the fluid type may differ from a standard differential, the service volume and interval structure in these specifications are uniform between the two.
• The 115 kW AWD configurations for both 2017-2019 and 2019-2020 list front and rear differential entries separately, each with a 1.8-liter capacity. Because both axles are serviced independently, the total differential fluid volume for an AWD service event on the 115 kW variant would involve two separate 1.8-liter fills.