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Subject: Re: Coolant mix

I've read in a couple places that auto anti-freeze has additives which are there to scour out deposits in semi-clogged car cooling systems and that these additives can damage magnesium cases or some bike radiators. Is this a hold-over from the olden days, or is it still true? I usually run about a 50/50 ratio of distilled water and Maxima or some other brand of motorcycle coolant. Or 60/40 water/antifreeze, even though it's snowing today it normally doesn't get all that cold where I live. I've run redline water-wetter and distilled water in track (road) bikes where anti-freeze is banned.


I haven't heard of the scouring agents, but I might be a little concerned if I had the Mag centercases, they can be somewhat touchy. I'm going to look into the extended life coolants like the new autos use to see if there is any advantage as to temp control. I still like the idea of changing the coolant mix yearly as it's cheap to do on a Trials bike and a good time to check it for oil or other contaminates. The RedLine and distilled water mix is good for unusual high heat conditions and I ran it in my National MX bikes too. The WaterWetter had pump lubricants in it so it's safe to use straight with water. Have you found any advantages to the Maxima over standard auto-type antifreeze?


Professional tuner and 'Trials Competition' writer Jon Stoodley has very kindly stepped up to the plate to answer your questions. If you're having problems, or need some advice just send an email to Jon. If it's something that could be useful to others, we'll post it on the site.
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