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An Addendum to the Stewart posting above. I have a few customers that really like the Stewart coolant, I have mixed opinions. It is extremely viscous and is very "oily" feeling, and if it was used on a track and had a spill it would make the track very greasy. That's one of the benefits that Water Wetter is supposed to address, a less slippery spill, should it occur. The Stewart coolant seems to, and is verified by their own literature, make temps run a little higher.But as we all know heat builds power, so that's the reason for my mixed opinions. It's been about 4-5 years since I've read the AMA rule book, but they used to forbid coolants other than water with an additive for the track. It was to eliminate slippery wet downs.
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