"Silicone Silicate" is obviously missing from the ingredient listing for Toyota red.
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atijerino said:Any relation between the type of coolant used and the PHH?
elmariachi said:Here is how Toyota describes their red coolant:
"Genuine Toyota Long Life Antifreeze Coolant, with its distinctive red appearance, provides maximum protection without the use of harmful silicates. This formula is extremely durable and because of its compatibility with non-metallic materials, it helps extend the life of water pump seals.
Will not clog radiators from silicone "gelling."
Will not corrode aluminum surfaces like coolants that contain borate.
Helps protect water pump seals. "
Nuff said.
Rich said:So nothing above states or supports that the waterpump seal is not designed for silicate containing antifreeze, right?
cruiserdan said:To answer this yet unanswered question, no. The PHH is going to take a $#!* sometime after 100k miles or 10 years no matter what you do.
Rich said:So nothing above states or supports that the waterpump seal is not designed for silicate containing antifreeze, right?
Japanese vehicles. This is a problem area, because Japanese-spec coolants have never been sold in the U.S. aftermarket and history says conventional American coolants work well in these vehicles. Toyota research indicates the new extended-life coolant contains phosphates to protect the water pump, and DexCool contains no phosphate. Honda has said it will not use a coolant with 2-EHA. So both carmakers exclude DexCool. Best solution with aftermarket coolants: Do a complete coolant exchange, and replace the Japanese OE coolant-conventional or extended-life -with conventional American or G-05.
CharlieS said:BTW there is a lesson here and it is that I should have just done my own flush and fill. Then I'd know for sure exactly what has been done and done right.
Charlie
CharlieS said:BTW there is a lesson here and it is that I should have just done my own flush and fill. Then I'd know for sure exactly what has been done and done right.
Charlie