OT Broken record alert from me! Don't pay for half water with 50/50 premix unless it's a must like Honda Type II* and to keep it OEM coolant. Get full strength and add distilled water to ~50% concentration much less expensive and really NOT that much less convenient. If doing a total flush, it only requires knowing cooling system capacity.
End of broken record.
*Aware that Honda makes a concentrate, but I've only seen it in qts. at Bernardi Parts online and with added shipping, it's no savings over premix from dealer after that is considered.