![]() (more "rainbow confusion" for car owners, pump jockeys, and some independent radiator shop owners)Ī couple of things I would like to add. In another thread someone stated that the extended life SuperTech juice is dyed green, not orange. By the way, the new -cheap- SuperTech extended life antifreeze/coolant at Wally*World lists the same ingredients as Prestone's licensed DEX-COOL, much of the same descriptive text on the back of the jug, but without the licensed DEX-COOL imprimatur from GM. About the only thing I wouldn't trust to a recent Toyota that came factory filled with cherry soda-pop coolant would be silicate and phosphate-laden conventional Prestone. (again, someone with more chemistry training would be welcome to chime in) In any event, there's reason to believe that the Toyota antifreeze/coolant is really an OAT-type, devoid of silicates and phosphates (or very nearly so), and though not identical to any of the licensed DEX-COOLs, is close enough in principle that Toyotas would run just dandy on Prestone DEX-COOL, and quite probably, a HOAT formula such as Zerex G-05. ![]() I suspect, but can't verify, that the potassium hydroxide is used as a pH buffer. The "hydrated inorganic salt" is potassium hydroxide. This is clearly the organic acid salt corrosion inhibitor, and obviously differs from the two that Prestone chose for its particular DEX-COOL flavor. The "organic acid salt" in the Toyota juice is sodium benzoate. I plugged the CAS numbers into my browser and got immediate hits. The two listed salts caught my attention though. I suspect the second is an unavoidable byproduct of the synthesis procedure, but someone with more chemistry behind him than I have would be able to verify or dismiss that speculation. Virtually all antifreeze/coolant products in general use, except those based on propylene glycol "environmentally friendly" products use the two listed glycols. The back of the Toyota jugs lists four primary ingredients and their CAS numbers: Certain GM, Ford, Chrsyler vehicles had their issues as did some imports.Getting back to the original poster's question, I took a few moments to research the Toyota juice. The only vehicles that I have ever had cooling system issues with were vehicle that were know in the industry to have cooling system issues(HG, IMG, WP). I've never had cooling system issues when using any brand coolant in any vehicle domestic or import.When well maintained! ![]() Have you compared the cost of Hyundai/Toyota coolants to the cost of ZEREX Asian or PEAK Global LifeTime? Unless the Hyundai is comparable to the Toyota in chemistry and the Hyundai is CHEAP!Ĭan you get Toyota Coolant at a good price? Why use Hyundai coolant when you can use Toyota coolant. If you only have DexCool available to you(even inexpensively), use the correct fluid for your application. This subject creates lots of different opinions.ĭo you have a huge stash/stock of DexCool in your posession or just available to you, inexpensively? If you already have a huge stash of DexCool, use it and maintain your vehicle on a regualar basis with it! Ok thanks for all.I will not use dex-cool.I will switch to Hyundai coolant and change it every 2 years.I can get Hyundai coolant for cost price.
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