[M.D. Holloway]

Originally Posted by RWebb

Thanks, Mike - I had it tested but don't know what sorts of tests they ran.
It was America's Tires or some such shop.

I've seen sets of color change test strips (paper??) for sale but am not sure if they do anything other than pH.

e.g.
http://www.amazon.com/Cool-Trak-311519-Coolant-Testing-Strips/dp/B000MIUJMO

Is this site reliable? Is that all I have to do?

Testing Antifreeze | Autobytel.com

Looks pretty good! There are other ways to test pH but these test strips are pretty darn effective. You also want to test the water % which can be done with a refractometer (tests the refractive index) or a hydrometer (which tests the density of the mix). Either method is effective but you will need a reference chart and proper testing procedures.

I am actucally looking at buying a testing unit for around $8k for our lab. a company called On-Site analysis has great units for testing all sorts of fluids. They are found in many truck shops. We are going to buy several diferent units not because they are the best but because that is what our customers use to gage their fluids with.