Honda Ridgeline, YK2/YK3 (USA / CAN)
Coolant capacity & service interval
Honda Ridgeline, YK2/YK3 (USA / CAN) models require coolant with a service fill capacity range of 7,13 to 7,4 liters. Service intervals follow a flexible on board maintenance system. The data covers 4 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| Ridgeline 3.5 V6 2WD (2019-2023) |
|
| Ridgeline 3.5 V6 AWD (2019- ) |
|
| Ridgeline 3.5 V6 2WD (2016-2019) |
|
| Ridgeline 3.5 V6 AWD (2016-2019) |
|
Additional Notes
- The Honda Ridgeline YK2/YK3 3.5 V6 cooling system service fill capacity is listed at 7.13 liters for both 2WD and AWD configurations in the 2016-2019 period.
- A service fill value reflects the amount of coolant required when draining and refilling the system during routine maintenance, as opposed to an overhaul fill, which accounts for a fully dry system including all passages and the heater core.
- The 2WD variant saw a capacity increase from 7.13 liters to 7.4 liters starting with the 2019 model year, a difference of 0.27 liters compared to the earlier specification.
- The AWD variant mirrors the same capacity shift, moving from 7.13 liters in the 2016-2019 range to 7.4 liters beginning in 2019, indicating the change applies across both drivetrain configurations.
- All four configurations share a flexible service interval governed by the on-board maintenance system, meaning the vehicle's own monitoring logic determines when a coolant service is due rather than a fixed mileage or time-based schedule.
- The on-board maintenance system approach ties service timing to actual operating conditions, so the coolant change interval can vary between individual vehicles depending on how and where each is driven.
- The 2019 model year appears as both an end point and a start point across the listed configurations, reflecting a specification revision that took effect during that year rather than at a clean generational boundary.