Jim, did you look at its MSDS?
Maybe you should rather go with the Xerex G05?

 

Cuase it actually has silicate and phosphate... low, but there.

 

This is Peak Global mixed 50/50 as in the example you gave for Zerex (apples to apples)

Boiling Point: 107oC (226oF)
Freeze Point: -37oC (-34oF)
Specific Gravity (Water =1): 1.07
Vapor Pressure (mm of Hg) @ 20C: <0.1
Vapor Density (air=1): Not Established
Water Solubility: Complete
Evaporation Rate (BuAc = 1): Nil
% Volatile By Volume: 45-48
Appearance: Amber
Odor: Mild
pH: 8.0


NOTE: Zerex's 'boil point' claim is with a 15psi cap, and thus higher. Peaks claim is with no cap. Pressurizing the system raises the boiling point and is why its pressurized in the first place. The higher the pressure, the higher the boiling point. Infact, glycol has very little effect on raising the boiling point of water and is actually an anti-freeze only. Why they call it 'coolant' is beyond me other than a marketing scam. Water cools better alone.

The reason why I say its the same, or 'close enough' is 'cause the Audi coolant is a BASF product that contains no 2-eh. 2-eh is what is in Dex-Cool and G-05 and we all know about the problems GM had with that. Peak Global and FleetGuard are the only other brands I can find that use a BASF no 2-eh formula.

 

Sorry.. I said 'Fleetguard' above, I ment 'Final Charge' has a non 2-eh formula.

http://www.finalcharge.com/organic.html

 

I think I am missing something, somewhere. Either they have a typo on their .pdf file, or they misrepresented their own product.
Another reference from the same MSDS, page 4:
How come the concentrated one has a crappier temperature protection range than the 50/50 pre-mixed one????

Anyway, tks for all of the other info It looks like I may go the same road for the next coolant flush.

 

I dont really know what that means, but glycol doesnt freeze.. least not @ 0f.. Maybe they mean it'll be 'syrup'..

 

According to me this 143-0709 TO CHASSIS/VIN #4B-X-160 000 Thermostat is perfect.
A sticking Audi thermostat will cause your Audi A6 to either heat up or not heat up enough causing your car's engine to work harder than it needs to. If your Audi A6 thermostat sticks open then the water temperature will not get warm enough because water will pass through the system without having a chance to hold and become hot. If your Audi A6 thermostat sticks closed then the water temperature will become to warm and overheat your Audi A6 engine. Search through our online catalog for the Audi thermostat that is right for you and make sure your engine is at the right temperature.

 

^^ What?

 

midnite- he turns into a future spammer...