Date:         Sun, 24 Aug 2003 19:47:48 -0600
Reply-To:     tom ring <taring@TARING.ORG>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         tom ring <taring@TARING.ORG>
Organization: Tippen Ringware
Subject:      propylene glycol phosphate free coolant
Content-type: text/plain; charset=ISO-8859-1

This is probably old news, so forgive me if it is, but Checkers carries Sierra
brand coolant for about 7.50 USD a gallon with a $2 mail in rebate.

I've read a few online reports about prop vs ethyl, and it's quite interesting.
 Prop won't carry quite as much heat energy but it's a pretty small difference,
the BIG difference is pumpability at low temps, with prop being about 6 times
as hard to pump at 20 below.

Here's the pumpability chart in text form , E.G. is ethylene glycol-

 0° F   3 x E.G.
-20° F  6 x E.G.
-40° F  9 x E.G.

Of course, your coolant won't be that cool very long, but I wonder about
getting things moving in a vanagon with the long cooling lines on a -30F day in
Minnesota.  And prop vs ethyl freezing characteristics are very different, too.

tom


------
Tom Ring K0TAR, ex-WA2PHW  EN34hx
85 Westphalia GL Albert
96 Jetta GL The Intimidator
taring@taring.org

"It is better to go into a turn slow, and come out fast, than to go into a turn
fast
and come out dead." Stirling Moss