Antifreeze should be a 50/50 mix with water. If you bought pure coolant, mix with water. If you bought premix (already 50/50) pour in straight.
Your engine should be cold ( to be on the safe side) when adding antifreeze/coolant. i let the car sit overnight and then add it.
No , it's best to add coolant when the engine is cold
Drain and flush the system. Pour in one gallon of pure antifreeze, and then top it off with distilled water. This will provide protection to around -25 Degrees F. If adding fluid to an engine with low coolant, look for the stem sticking up in the inside of the coolant overflow reservoir and add enough 50/50 mix to reach the top of the stem.
My engine coolant is a 50 / 50 mix of antifreeze and distilled water so adding water will just dilute the mixture more and weaken the antifreeze so the coolant mixture will freeze at a warmer temperature and it will reduce the corrosion protection if there is not at least 40 % antifreeze
Yes. Never add pure antifreeze. Pure antifreeze will actually freeze before a 50/50 mix. Add coolant that is a 50/50 mix of antifreeze and distilled water. You can buy it already pre-mixed.
You dilute your antifreeze. If you buy prediluted 50/50 antifreeze, then you'll dilute it more than you're supposed to. If you buy straight 100% antifreeze, you're actually supposed to dilute it yourself by adding an equal amount of water to the antifreeze you put it. Your vehicle will be fine. Stop freaking out. Get a coolant flush.
Don't mix Dex-Cool with other types of coolant. You will be asking for trouble and paying a premium to get it. See link.
If you're adding coolant to the reservoir often, you have a leak somewhere. Have the cooling system pressure tested. That may force the leak to show up.
When you add engine coolant to a 2003 Jeep Grand Cherokee because the low coolant indicator has come on, you should add to the reserve tank and the radiator if they are low. Sometimes, just the reserve tank needs filled.
It lowers the freezing point.
Adding coolant to a 2003 Pontiac Grand Am is very easy to do. The coolant can be directly added to the radiator. Make sure the engine is not hot before adding the coolant.