300 degree COOLANT

[Greg Hermann]

>Correct me if i'm wrong, but doesn't GM say not to use propylene glycol
>antifreeze in their engines?
>
>----------
>> From: Chris Morriss <crsm at oroboros.demon.co.uk>
>> To: diy_efi at efi332.eng.ohio-state.edu
>> Subject: Re: 300 degree COOLANT
>> Date: Monday, October 12, 1998 2:22 PM
>>
>> In message <Pine.GSO.3.96.981011160006.25800G-
>> 100000 at piglet.cc.utexas.edu>, Jake Sternberg
>> <chickens at ccwf.cc.utexas.edu> writes
>> >
>> >has anyone heard of a special type of coolant which
>> >boils at 300 degrees F instead of 212-250 degrees?
>> >
>> >I have a 400CI chevy smallblock with heads from a
>> >different engine, which don't have steamholes.. so
>> >I need to run this stuff.  Any information would be
>> >appreciated.
>> >
>> >thanks,
>> >-Jake
>> >
>> I'm looking for this stuff as well.  I gather that Propylene Glycol is
>> what to look for, (as compared to normal Ethylene Glycol).  Can anyone
>> confirm that this is the case?
>>
Yes, you are correct. Sierra is one brand name, and Prestone now is
marketing it, although we might be in a test marketing area here.

Regards, Greg

>> thanks,
>> --
>> Chris Morriss