Adding Engine Coolant If the reserve tank is completely empty, you should also check the coolant level in the radiator. 1. Make sure the engine and radiator are cool. Maintenance Removing the radiator cap while the engine is hot can cause the coolant to spray out, seriously scalding you. Always let the engine and ra-diator cool down before re-. Draining the radiator in a Honda Accord is a straightforward process. Coolant, or antifreeze, flows from the radiator to the engine to prevent overheating. As coolant ages, inert residue builds up and the liquid becomes sluggish. When this happens, the engine in your Accord does not cool properly. Over time, this can damage the system on your car.
The video above shows you where the coolant reservoir in your Accord is located and how to add coolant / antifreeze. Be sure to check your owners manual to determine the correct type of fluid to add - for Hondas, it will typically be in a section titled Fluid Capacities in the back of your manual. Mix the coolant / antifreeze with distilled.. Checking the engine coolant (also known as antifreeze) level in your 2018 Honda Accord is pretty easy. In order to get an accurate reading, your 1.5 liter engine should be cool to the touch when you check it. Engine coolant / antifreeze circulates through your engine to keep it cool in the summer but won't freeze in the winter.