Honda Ridgeline, YK2/YK3 (USA / CAN)

Additional Notes

• All service fill capacities listed are partial-drain figures, meaning the values reflect only the fluid exchanged during a routine service rather than the total system volume following a complete overhaul or rebuild.
• The Honda Ridgeline 3.5 V6 carries a service fill capacity of 3.1 liters for both the 2WD and AWD configurations in the 2016-2019 model years, with no interval mileage or time figure attached to either entry under the flexible on-board maintenance system condition.
• From 2019 onward, the service fill capacity for both drivetrain variants rises to a range of 3.3-3.5 liters, a modest increase over the earlier 3.1-liter figure that may reflect a revised transmission unit or updated service procedure.
• The capacity range of 3.3-3.5 liters, rather than a single fixed value, indicates that the actual volume recovered during a drain can vary slightly depending on fluid temperature, drain duration, or transmission operating history at the time of service.
• Under the flexible on-board maintenance system condition, no fixed mileage or time interval is specified for either the 2WD or AWD variants across any model year, meaning the vehicle's own monitoring system determines when a fluid change is due.
• Under severe use conditions, both the 2WD (2019-2023) and AWD (2019- ) variants share an identical fixed interval of 30,000 miles or 24 months, whichever comes first, paired with the same 3.3-3.5 liter service fill range.
• The 24-month time limit within the severe-use interval means that calendar aging of the fluid is treated as a limiting factor independent of accumulated mileage, which is relevant for vehicles driven infrequently but subjected to demanding operating conditions.
• No severe-use interval or fixed mileage figure appears in the 2016-2019 entries for either drivetrain configuration, as those model years carry only the flexible on-board maintenance system condition in the specifications.