Ethylene and propylene glycol are both toxic. The problem with ethylene
glycol is it tastes sweet so is an attractant for little critters. They
think its sugar water and lap it up, much to the discomfort of their
innards. Propylene glycol is not tasty so even though its toxic it doesn't
encourage the critters to lap it up.
Aloha
Peter
>From: "Faure, Marin" <Marin.Faure@PSS.Boeing.com>
> >I'm not sure about the corrosion inhibitors being less effective, but I
>also
>started using Red Line Water Wetter when I switched over and don't
>hesitate
>recommending this product to anyone.
>http://www.jag-lovers.org/lumps/coolant.htm
>
>Reading the coolant commentary on the above URL that Perrone posted,
>I came across this paragraph:
>
>"There are two types of base coolant stock available right now: Ethylene
>glycol (EG) and propylene glycol (PG). Currently, no engine manufacturers
>selling product in the US recommend PG (sold by Arco as Sierra brand
>coolant), most caution against it (check your owner's guide). PG has a
>higher boiling point than EG (straight), but has a lower heat-transfer
>coefficient. EG coolants also come in several flavors, depending on the
>additive package (more below). BTW, PG isn't truly non-toxic."
>
>The author goes on to describe some of the other coolants on the
>market. I have no idea of the author's qualifications on the subject,
>but the article is worth reading if you're interested in the merits
>and demerits of the various coolant types. Thanks, Perrone, for
>posting these URLs.
>___________________________
>C. Marin Faure
> (original owner)
> 1973 Land Rover Series III-88
> 1991 Range Rover Vogue SE
> Seattle
>
>
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com
This archive was generated by hypermail 2b30 : Wed Apr 11 2001 - 22:07:25 EDT