Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2008 Honda RidgelineCoolant Type & Capacity
OEM spec from the factory service manual for the RT variant.
Quick Answer
Coolant Type
HONDA Long-life Antifreeze/Coolant Type 2
Capacity
1.64 GALS.
6.2 L
Variant
RT
Note: This coolant is pre-mixed with 50/50 antifreeze and water. Never add straight antifreeze or plain water.
Includes: the coolant in the reserve tank and that remaining in the engine.
Source: Factory service manual — 2008 Honda Ridgeline RT. View full manual section →
What You'll Need
Frequently Asked Questions
- What type of coolant does a 2008 Honda Ridgeline take?
- The 2008 Honda Ridgeline requires HONDA Long-life Antifreeze/Coolant Type 2. The exact spec may vary slightly by engine variant — this page shows the OEM recommendation for the RT configuration.
- How much coolant does a 2008 Honda Ridgeline hold?
- The 2008 Honda Ridgeline cooling system capacity is 1.64 GALS. (6.2 L).
- Can I use universal coolant in my 2008 Honda Ridgeline?
- It is strongly recommended to use coolant that meets the HONDA Long-life Antifreeze/Coolant Type 2 specification. Universal coolants may not provide the correct corrosion protection for your engine's materials.
- What happens if I use the wrong coolant in my 2008 Honda Ridgeline?
- Using coolant that does not meet the OEM specification can cause corrosion, gasket damage, and overheating. Always verify the correct coolant type before topping off or flushing the system.