On Sun, Nov 6, 2011 at 7:27 AM, Dennis Haynes <d23haynes57@hotmail.com>wrote:

> Any ethylene glycol based antifreeze becomes corrosive when heated and
> mixed
> with oxygen.
>

I have been using prestone 50/50 longlife, expecting to change out about
every two years in my diesel westy.  I am wondering if going to a different
coolant will allow me to extend the change interval, or if the prestone is
good for longer than 2 years?
--
Alan Felder
Austin TX
82 Diesel Westy