Val:

What can I say? Mechanical Emngineers are our lifeblood (no pun intended) in my business, and I use them all the time. But I have never had such a succinct and thoughtful response, on any subject, such as yours.

I am just glad that we have had the opportunity to validate many years of experience - use distilled water, but if you cannot, then make sure that your 50-50 coolant is specific for cooling systems of fine autos like MB.

Finally, if you use MB Coolant, you will have that little tell-tale checmical which will pinpoints any leaks. Cheap insurance, in my calculated judgment - and yes, I have done the calculations!!!!.......Andras