2018 Honda CR-V Coolant Capacity & Type

The 2018 Honda CR-V cooling system typically holds between 7.5 to 8.0 quarts (7.1 to 7.6 liters) of coolant, though this can vary slightly by engine. Maintaining the correct coolant type and level is crucial for the longevity and performance of your vehicle.

Quick Answer

• Total Cooling System Capacity: Approximately 7.5 - 8.0 quarts (7.1 - 7.6 liters)
• OEM Coolant Spec: Honda Long-Life Antifreeze/Coolant Type 2 (Blue, Silicate-Free, Phosphate-Hybrid Organic Acid Technology - POAT)
• Mix Ratio: 50/50 Pre-mixed (do not add water if using pre-mixed; if using concentrate, mix with distilled water)

Capacity by Engine Option

The 2018 Honda CR-V came with two primary engine options, and their coolant capacities are very similar:

• 2.4L K24W Earth Dreams i-VTEC (NA): 7.5 - 7.8 quarts (7.1 - 7.4 liters)
• 1.5L L15B Turbocharged i-VTEC: 7.7 - 8.0 quarts (7.3 - 7.6 liters)

Always consult your owner's manual for the most precise specifications for your exact trim level and engine.

Flush Interval

Adhering to the manufacturer's recommended flush interval is vital for cooling system health:

• Normal Duty: Typically, the initial coolant change is recommended at 120,000 miles or 10 years, whichever comes first. Subsequent changes are then recommended every 60,000 miles or 5 years.
• Severe Duty (e.g., frequent towing, extreme temperatures, dusty conditions): Consider shortening the flush interval to every 60,000 miles or 5 years, even for the initial change.

Regularly check your coolant level and condition between flushes.

How to Refill & Bleed

Refilling and bleeding the cooling system correctly is crucial to prevent air pockets, which can lead to overheating. Always perform this procedure on a cool engine.

1. Drain Old Coolant: With the engine cool, place a drain pan under the radiator. Open the radiator drain plug (often a petcock at the bottom of the radiator) and remove the radiator cap to allow the system to drain completely.
2. Close Drain Plug: Once drained, close the radiator drain plug securely.
3. Refill with New Coolant: Slowly pour the specified Honda Type 2 coolant into the radiator. Fill until it reaches the neck of the filler opening. Fill the overflow/reserve tank to the "MAX" line.
4. Burp the System: Leave the radiator cap off. Start the engine and let it run with the heater on full blast (hot heat setting, fan low) to open the thermostat and circulate the coolant. Watch for air bubbles rising to the surface. Gently squeeze the radiator hoses to help dislodge air pockets.
5. Maintain Level: As the engine warms up and air escapes, the coolant level in the radiator will drop. Continuously add coolant as needed to keep the radiator full.
6. Install Radiator Cap: Once no more bubbles are visible and the cooling fans have cycled on and off a few times, install the radiator cap. Take the vehicle for a drive, then allow it to cool completely. Check the coolant level in the overflow tank and top off if necessary.

Specific Note for CR-V: The 2018 CR-V generally does not have a separate bleed screw. Proper burping by running the engine with the cap off is typically sufficient. Some technicians prefer using a vacuum fill tool for the most efficient and air-free fill.

Common Cooling System Issues for this Generation

While generally reliable, the 2018 Honda CR-V can experience some cooling system related issues, often exacerbated by neglected maintenance:

• Coolant Leaks: Common areas for leaks include the water pump, radiator hoses (especially at connection points), and the radiator itself. Keep an eye out for blue or green puddles under your vehicle.
• Thermostat Issues: A faulty thermostat can cause the engine to overheat (if stuck closed) or run too cool (if stuck open). Symptoms include fluctuating temperature gauges or slow engine warm-up.
• Radiator Fan Problems: Issues with the electric cooling fans or their relays can lead to overheating, particularly in stop-and-go traffic or at idle. Listen for unusual noises from the fans or ensure they activate when the engine gets hot.
• Head Gasket Leaks (Less Common, but Possible): Though less frequent, a blown head gasket can lead to coolant loss, white smoke from the exhaust, or coolant mixing with oil. This is a more serious repair.
• Water Pump Failure: The water pump circulates coolant. A failing water pump can cause leaks, unusual noises, or overheating. Listen for a grinding or whining sound from the front of the engine.

Regular inspections and adherence to the recommended coolant maintenance schedule are the best defenses against these issues.

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