Acura MDX, YD3, YD4 (USA / CAN)

Additional Notes

• The Acura MDX 3.5 V6 and 3.5 V6 SH-AWD for 2013-2015 are the only configurations listed with a dry fill capacity, both rated at 8 liters. A dry fill figure represents the total fluid volume required when filling a completely drained or rebuilt transmission, such as after a full overhaul or unit replacement, rather than a routine fluid exchange.
• Service fill capacities across all configurations are considerably lower than the 8-liter dry fill figure. The 2013-2015 V6 variants carry a 3.1-liter service fill, while the 2016-2020 V6 and V6 SH-AWD variants specify 3.3 liters, and the 3.0 Sport Hybrid specifies 3.5 liters. A service fill reflects only the volume displaced during a standard drain-and-refill procedure, as a portion of fluid remains in the torque converter and valve body.
• The 0.2-liter difference in service fill between the 2013-2015 MDX 3.5 V6 (3.1 liters) and the 2016-2020 MDX 3.5 V6 (3.3 liters) coincides with a transmission revision between those generation spans, with the later units using a 9-speed automatic in place of the earlier 6-speed unit.
• The MDX 3.0 Sport Hybrid carries the largest service fill among all listed configurations at 3.5 liters, which aligns with the added complexity of a hybrid-integrated automatic transmission that manages both combustion and electric motor torque inputs.
• For the 2013-2015 MDX 3.5 V6 and V6 SH-AWD, only a normal use condition is listed, with no separate severe or flexible interval entry. No change interval figure appears alongside the capacity data for those rows.
• Starting with the 2016-2020 model years, the V6 and V6 SH-AWD configurations adopt both a severe-use interval and a flexible on-board maintenance system interval, replacing the single normal-use entry seen in the 2013-2015 rows.
• Under severe use conditions, the Canadian-market MDX 3.5 V6 and V6 SH-AWD (2016-2020) specify a 48,000 km change interval, while the US-market equivalent specifies 30,000 miles. Converting 30,000 miles yields approximately 48,280 km, making the two intervals functionally equivalent despite the different unit expressions.
• The MDX 3.0 Sport Hybrid introduces a third interval category not present in the V6 rows: a severe first-change-only interval. For the Canadian market, the first change under severe use is due at 48,000 km, compared to the standard severe interval of 40,000 km. The US market equivalent sets the first severe change at 30,000 miles versus the ongoing severe interval of 25,000 miles. A first-change-only interval acknowledges elevated wear particle accumulation during initial transmission break-in.
• The flexible on-board maintenance system interval listed for both the Sport Hybrid and the 2016-2020 V6 variants carries no fixed kilometer or mileage figure. Under a flexible maintenance system, the vehicle's onboard computer calculates change intervals based on actual operating conditions rather than a predetermined distance threshold.
• The severe-use change interval for the US-market MDX 3.0 Sport Hybrid (2017-2020) is 25,000 miles, which is shorter than the 30,000-mile severe interval specified for the US-market 3.5 V6 and V6 SH-AWD over the same 2016-2020 period. The Sport Hybrid's more frequent interval under identical use conditions reflects the additional thermal and mechanical demands placed on the transmission fluid in a hybrid powertrain.