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The 2007 Chrysler Pacifica comes with a yellow antifreeze that uses OAT technology specifically made for American cars. It is recommended to mix it with water unless it's already pre-diluted to a 50/50 ratio. You can locate the coolant reservoir under the hood in the engine bay on the driver's side towards the back of the firewall. Make sure to always check the levels when the vehicle has cooled down. Avoid opening the coolant cap when the engine is hot or has recently been running to prevent splashing and burns from the hot liquid. Look out for signs of low antifreeze such as high engine temperatures, warning lights, and leaks from the front of the car. If there is a need for the replacement or repair of the thermostat, water pump, or radiator hoses, it could affect the antifreeze levels.
The 2007 Chrysler Pacifica requires O'Reilly's 55-gallon concentrated yellow coolant/antifreeze for proper operation.