Barney Gaylord wrote :
> I have been using a 50/50 mix of ethelyne-glycol (standard "permanemt"
> antifreeze) and water in all of my cars for decades, many hundreds of
> thousands of miles, with no other additives of any kind, and a flush and
> change of fresh coolant every 3 to 5 years. I too have "never seen any
> rust or scale in any radiator on any car I own", and am very
> happy with the results.
Likewise not trying to start a flame-fest, but my experience has been that 5
years is not often enough in my 59 TR3A. TR3s have a particular weak spot
in the soft aluminum thermostat housing bolted to the cast iron head.
Running antifreeze for 5 years allowed a noticeable amount of galvanic
corrosion around the inside edge of my Tstat housing. Every 2 years seems
to be working OK. Of course, this may also depend on the brand of
antifreeze used, since it's not the glycol itself that provides corrosion
protection but the additives in it. I've been using either Prestone or
Zerex, whichever is on sale.
I haven't tried FT's No-Rosion yet, but I intend to. I expect it to
actually save me a little money over changing glycol every 2 years, but
money isn't my main concern here. It's getting tough to find TR3 Tstat
housings in good condition (and although the TR4 housing will interchange,
the difference is visible).
Another $.02 worth ...
Randall
/// british-cars@autox.team.net mailing list
/// or try http://www.team.net/cgi-bin/majorcool
/// Archives at http://www.team.net/archive
|