Barrie Robinson wrote:
>
> Somewhere I read of a test of Water Wetter - It said it did nothing to
> help. My school chemistry is a bit vague but I would like someone to
> explain why it works - I sort of wonder if it is in the same class as the
> "magnetic fuel saver" thingy that "disperses" hydrocarbon clusters as
> advertised on the JC Whitney catalog (disperses? - yes, right!). The only
> thing that I can think of is that it reduces the surface tension but such
> action would give only minute benefit! And advertising means nothings
> either - just look at the STP stuff with endorsements all over the place -
> and it does nothing apparently.
>
> One thing I can remember is that anything dissolved in water will increase
> the boiling point of the water. I believe this also applies to colloids
> but not sure if it is to the same degree
Actually STP is an effective VI improver. VI is Viscosity Index. STP can
turn 10W40 into 20W50 pretty easily.
I tried using less coolant and adding Water Wetter when my Cooper S was
running hot a few years ago and it did help marginally. Then I found that a
certain prominent West-coast Mini-parts supplier had sold me a defective
radiator: it had three of the downpipes with no welds or solder on the
joints and was micro-leaking when hot. Since the leaks were so small the
leaked fluid just evaporated and left no puddle, it took my cooling-system
pressure-tester to find the problem.
I returned the defective rad to the company at my own expense but was never
refunded the cost of the rad or the shipping. This convinced me they are
damned crooks. I bought a new rad at Brighton at the end of the L2B Mini
run and once back in the States and installed, it solved the problem.
-Rock http://www.rocky-frisco.com
--
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The Wednesday Night Science Project: http://www.wednitesciproj.us
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