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Date:         Fri, 15 Sep 1995 08:23:44 CST6CDT
Sender:       Vanagon Mailing List <vanagon@vanagon.com>
From:         "Dan Houg" <fairwind@northernnet.com>
Subject:      Propylene glycol coolant warnings.

Import Service:  Sept 1995.


DEALER DIRECT (a monthly feature of dealer service bulletins)


to quote:


"Mazda does not recommend the use of propylene glycol coolants in 
Mazda vehicles.  According to Mazda, available information indicates 
the following characteristcs regarding prpylene glycol coolants:


- They provide less heat transfer.
- They may not provide adequate corrosion protection (to meet Mazda's 
specifications.)
- Freezing temperature of these coolants is 10-20 percent higher than 
ethylene glycol-based coolants. 


For these reasons, Mazda recommends the use of an ethylene glycol and 
water mixture in the cooling systems of all Mazda vehicles."


-dan
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