You want a 50/50 mixture. You can purchase it all ready mixed.
50-5050-50
Minimum 50/50. Maximum 70/30 (coolant/water).
The proper ratio depends on the temperatures your vehicle will be operated/stored in. Typically, a 50/50 ratio will be just fine. If you will park/store your vehicle in extremely cold (sub-zero) temperatures, you can increase to 60% coolant to 40% water.
50/50 for most application
The water pump circulates the coolant to cool the engine.
You need a 50/50 mixture of water and antifreeze.
IN THE WATER JACKET.
Usually 50 / 50 mix ( Ford states not to exceed 60 % antifreeze and preferably distilled water )
Any Ethylene Glycol based coolant mixed in a 1:1 ratio with water. Prediluted means it is already in the correct ratio.
The proper ratio of bleach to water for effective disinfection is 1:10, meaning one part bleach to ten parts water.
50/50
50% water to 50% coolant is the standard unless you live in a very cold climate where it goes down to -25 degrees F or lower, then you may want to mix 25% water to 75% coolant but never straight coolant.