The quickest way to top off coolant is to check the reservoir when the engine is cold and fill with the recommended Honda coolant until the “FULL COLD” line is reached. Do not open the radiator cap when the engine is hot, and use Honda Type 2 coolant (premixed 50/50) or an equivalent that meets Honda’s specifications. Then recheck after the engine cools.
What you’ll need
Gathering the right coolant and basic tools ensures a clean, safe refill without spills.
- Honda Type 2 coolant (premixed 50/50) or an equivalent that meets Honda specification
- Funnel to prevent spills
- Clean rag or towels for wiping up spills
- Protective gloves and eye protection
- Clean container for any spills or excess liquid
- Distilled water (only if you are mixing concentrate yourself)
With these items on hand, you can refill the reservoir accurately and minimize mess.
Step-by-step guide
Follow these steps carefully to refill the coolant without causing damage or burns.
- Park on level ground and ensure the engine is completely cold before you start.
- Open the hood and locate the translucent coolant reservoir in the engine bay; note the FULL COLD and MIN marks on the side.
- Slowly remove the reservoir cap only if the engine is cold. If it’s stubborn, wait a bit longer.
- Check the coolant level; if it’s below the FULL COLD line, pour the specified coolant into the reservoir using a funnel until the level approaches the FULL COLD mark. Do not overfill beyond the line.
- Reinstall the reservoir cap securely and wipe up any spills.
- Start the engine and let it run with the heater on high until the thermostat opens and the temperature gauge rises. Watch for bubbles or signs of leakage. Turn the engine off and let it cool, then recheck the reservoir level and add more if needed to reach the FULL COLD line.
- Inspect the cooling system for leaks around hoses, the reservoir, and the radiator. If leaks are present or the level drops again, have the system inspected by a mechanic.
When using premixed coolant as recommended, there is no need to dilute or add water. If you have concentrate, mix 50/50 with distilled water as directed on the product label before filling.
Coolant specification and notes
Honda generally specifies Honda Type 2 coolant for most 2001+ models, including the Pilot. Use the OEM-recommended coolant or an equivalent that meets Honda’s specifications. Do not mix different coolant types, and avoid using generic antifreeze products not rated for Honda cooling systems. Always reference the owner's manual for exact guidance and service intervals.
Summary
To add coolant to a 2013 Honda Pilot, verify the engine is cold, check the reservoir level, and fill with Honda Type 2 premixed coolant up to the FULL COLD mark. Do not open the radiator cap when hot, and recheck after the engine reaches operating temperature and cools again. Watch for leaks and seek professional help if the level continues to drop. Regular checks help prevent overheating and extend the life of the cooling system.
Can I just add coolant to existing coolant?
First yes you can add more coolant if you are low . You shouldn't be low on coolant unless you have a leak. You should replace the coolant every 5 year's Maximum. When replacing the coolant or even just topping off make sure you replace it with Pink Toyota or Asian long life coolant.
Can I just add coolant myself?
And maximum line so it's either going to say max or there's going to be an arrow. So in this case there is an arrow. All right next up is take off the rest for cap get yourself an appropriate. Funnel.
Can I just pour coolant into the reservoir?
To top up your engine's coolant, you can simply open the reservoir cap (be careful the engine is not too hot and use a cloth wrapped around the cap to open it, as there could be some residual pressure left in the system) and add to the fluid level – what you use to do this is very important though.
How to add coolant to Honda Pilot?
Make sure the engine and radiator are cool.
Push down and turn the radiator cap counter-clockwise to remove it. The coolant level should be up to the base of the filler neck. Add coolant if it is low. Put the radiator cap back on, and tighten it fully.


