You can pay cash for ready-made mixtures of coolant that already have water other, or you can pay cash for full-strength antifreeze which needs to be diluted with distilled water before being other to the engine system. They need to be combined to create the decent coolant. Keep in mind, you never want to pour antifreeze or water by themselves into your engine system. Interestingly enough, this isn't the earliest time you've heard of ethylene glycol as it is the available ingredient in the classic term "antifreeze". In colder climates, this is extremely troublesome. Water is used to transfer heat while ethylene glycol is used to lower the freezing point of the liquid. Liquid coolants are usually half water and half ethylene glycol. Electrolysis is difficult to detect and often does huge damage before being uncovered." -agcoauto.Coolant, as it relates to vehicles, is generally a liquid or gas substance used to regulate the temperature of your engine. In extreme examples, cylinder heads and even cylinder walls can be destroyed. The thin aluminum cores of the radiator and heater core will quickly be eaten away. "Electrical current flowing through coolant can produce an anode/cathode type effect. This is because the engine block is isolated from the ground by the rubber mounts." If the engine requires 130 amps to operate and the ground can only conduct 100, the additional power can be pulled through the coolant. For example, when a temporary battery end is improperly used to repair a corroded cable. "Electrolysis occurs when the engine lacks a proper ground for the electrical system. Just pay attention to the label before you buy to check for added mineral content much like bottled water you buy at the convenience store.Īnother detail I discovered during my research is to be sure your battery has a good ground. The latter if it is sold as drinking water usually has iron and manganese remaining since these are necessary for maintaining good health. Steam distilled or deionized water is preferred to reverse osmosis. A gallon of Toyota coolant is a minuscule percentage of the purchase price of the vehicle.Ĭlick to expand.The dye is primarily to differentiate manufacturers products and identify coolant as such since antifreeze is clear when manufactured. Personally I would not take a chance with any coolant other than what Toyota recommends but to each their own. This TSB is dated 2002 and I have not been able to find an updated TSB on the subject.Īfter market coolants containing silicates can cause problems for water pump seals because of their abrasive nature hence the absence of this ingredient in Toyota and other Japanese coolants. The Super Long Life pink coolant is pre-diluted but is not diluted Long Life red. However if you add pink coolant to red or vice versa the Super Long Life efficacy of the pink will be compromised. Mixing Toyota red and pink coolants is acceptable practice according to TSB PG010-02. Pre 2004 Toyota used a red OAT based coolant, and later switched to a pink Phosphated HOAT (Hybrid Organic Acid Technology) based coolant for '04 and up. Note that both organic and inorganic salts are included in the mix. the mix contains no silicates or borates. Here's the ingredient label from a Toyota Long Life red coolant (not diluted) gallon container in my garage:Įthylene Glycol (107-21-1), Diethylene Glycol (111-46-6), Water (), Organic Acid Salt (532-32-1), Hydrated Inorganic Salt (). Although the addition of hydrated inorganic salts indicates the red coolant is a unique Toyota formulation. Toyota's current red coolant is an OAT (Organic Acid Technology) based coolant which like most Japanese coolants contain phosphates but no silicates or borates. Choice of coolants and lubricants is always a touchy subject with opinions as varied as the number of products.
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