Chris,
You must be changing your coolant often enough for the pH to not get too low.
I experienced more corrosion in the last couple of years with water wetter and
purified water compared to the previous 8 years with coolant/purified water
which was essentially nil. There were enough flakes of rust clogging the
radiator tubes to make the car run noticeably hotter.
While the rad was out for service, I did a back flush of the block with water
in through the lower water pump hose attachment and put a woman's stocking on
the upper hose fitting as a filter. 2 or 3 tablespoons of crud showed up in the
stocking along with some more rust bits.
There's a lot of info online in various hotrod forums on how water wetter is no
longer being developed; it can result in a peanut-butter-like goo in the
coolant; the chemist who developed it no longer works for Redline, etc.
These same folks prefer Royal Purple Ice instead of water wetter because it is
evidently a more modern formulation. I was all set to add that to my coolant
except it would have required 2 bottles at $15 each so I said the hell with
that and just went to the coolant/tap water mix with an Australian Tefba
coolant filter for good measure.
--
Steve
Chris Dimmock wrote:
>
>
> I've been running tap water and Redline waterwetter in my BJ8 for the past
> 15 years. No issues. Changed it a few times, and my block & head were
> redistripped when the engine was built.
>
>
> From the redline website....
>
>
> "Red Line WaterWetter. is designed to provide improved metal wetting and
> excellent corrosion inhibition when added to plain water or a glycol
> coolant.
> ..... Red Line WaterWetter. will provide the proper corrosion inhibition
> for all common cooling system metals, including aluminum, cast iron, steel,
> copper, brass, and lead."
> [LINK:
> http://www.redlineoil.com/content/files/tech/WaterWetter%20Tech%20Info.pdf]
> http://www.redlineoil.com/content/files/tech/WaterWetter%20Tech%20Info.pdf
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