You need to call your local sewer utility before you do this because the amount you can pour down per day and how much you should dilute it depends on what kind of waste water treatment they’re using, but you generally want to dilute it at 3:1 (assuming the coolant itself is already a 50:50 mix) and you can do no more than 10 gallons a day. Most of the time, coolant is good longer than the estimate in the owner’s manual, but sometimes it breaks down early and you lose performance. You’ll need a test kit to do it yourself. You can check the specific gravity and color of your coolant to see if it is time. We recommend that you flush the radiator according to your vehicle manufacturer's maintenance schedule in order to prevent coolant leaks and damage to the gaskets. OAT antifreeze was formulated to have a much longer life than IAT antifreeze. The main hazard is animals drinking it, but this has more to do with it’s sweet taste which encourages them to drink it in large quantities as opposed to it being spectacularly poisonous. Engineered for convenient flushing of the radiator, Dorman's Flush Kit provides you with everything necessary to complete the job. Part of the reason why there aren’t as many places that take used antifreeze is that the EPA doesn’t technically consider it hazardous waste. Learn how you can keep your cooling system in shape by flushing & filling the system. We offer a guarantee that Prestone is suitable for all cars and engine materials. Engine coolant, or antifreeze, helps keep your vehicle keep its cool. Eliminates contamination II High pressure. It is the safest, most complete and effective Transmission Cooler Line Flush available. It can be used in all cars effectively, offering the same levels of protection, and without any damage. Shop for Lubegard Transmission Cooler Flush 13.25oz with confidence at. Even if you take it to a recycling center, that’s usually more or less what they do to it. Prestone is an OAT coolant/antifreeze but also contains anti-corrosion ingredients to protect your cooling system. We recommend that you flush the radiator according to your vehicle manufacturers maintenance schedule in order to prevent coolant leaks and damage to the gaskets. I recall this causing a major argument years ago on this board, but the official policy in many communities is still you just dilute it heavily and pour it down the drain. Engineered for convenient flushing of the radiator, Dormans Flush Kit provides you with everything necessary to complete the job.

Autozone coolant line flush