[Vwdiesel] More Quantum questions?

[Roger Brown]

mikitka wrote:
> So if the engine is going to run at the T-stat temp no matter what, then why
> even bother with water wetter? 180 degrees is 180 degrees. To me water
> wetter and all those is for the more severe market, like racing and people
> who push their vehicles to the max. For the average ride it just seems over
> kill. If your having overheating issues then the cause needs to be found. 
> Nick

It does help reduce hot spots and cavitation in the cooling system by reducing the surface 
tension of the coolant.  You can really feel the difference when you add it.  I do agree 
that it will not "fix" cooling system problems, but I also use it as a sort of insurance 
policy in case something happens on the road.

For example in my Toyota, I once had a fan clutch blow out all it's silicone oil while in 
some stop-n-go traffic in 100F weather.  Funny thing is I did not know it had happened at 
the time, only thing I noticed was that my coolant temp did go up just a little bit, but 
it never overheated.  It was a few weeks later that I noticed I had no heat on a cool 
evening that prompted me to pop the hood.  Then I saw all the silicone oil sprayed under 
the hood.  Pulled the t-stat (it was one of those fail safe units) and it was locked fully 
open.  Replaced it and the fan clutch and all was fine.  I think that was a case where the 
Water Wetter helped save the engine from overheating.

-- 

   Roger