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· Premium Member
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You can't find Purple Ice around here even though a few places carry RP oils. I've used Redline's Water Wetter in several vehicles. No obvious difference, and the gauges in most vehicles aren't accurate enough to tell anything. It might be working, but how would I know? Purple Ice is only supposed to lower the water temp by 8 degrees (if your running the standard AF mix) so not a lot.

The pink AF is the long life Toyota fluid.

The radiator in the FJ is thin but covers a very large frontal area and is very efficient at transferring heat. The only folks that have ever had a cooling issue were those that drove thru mud and/or muddy water. The FJ's radiator is a magnet for mud. The mud dries quickly on the fins and essentially blocks the heat transfer.

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