Coolant additives tech article for discussion.

RETed · 04-23-2010, 11:06 PM

Quote:

Originally Posted by Cp1

I dont doubt that there are some that claim mercedes coolant to be the best but i would like to know why they think that or what that opinion is based on...

FWIW:
http://www.thesaabsite.com/Coolantinfo.htm

Quote:

ive been assured by my research chemist friend that our method for measuring surface tension is as accurate a test as any especially since using lab equipment(containers and eyedrops)... by measuring the curve of either a meniscus or the dome formed by liquid in a container.

I have no problems with this part of the test.
In fact, I had to do those sames tests in organic chem classes that I took eons ago...

-Ted

***TitaniumTT*** · 04-24-2010, 07:11 AM

Quote:

Originally Posted by Cp1

That would actually seem counter intuitive. all manufacturers coolant like GMs Dex-cool for example, is formulated specifically to lengthen the lifespan of their seals and other rubber components. however, all antifreeze if not changed periodically will turn acidic, and start to eat away at these things and even metal, and that is what i suspect is happening. The only real way to test this is to place a new seal in some solution and come back after a few months to see whats happened. My guess would be not much. In my experience seal corrosion is mainly because of an owners inattention to basic maintenance. i flush the coolant about once a year while some people dont believe you ever have to, they just keep topping it up when it seems low, which is a terrible practice.

I would do this immediately as I have a friend that did it and the RedLine ate into the seals and destroyed them in a matter of hours.

However, You would not want to use new seals, you would want to use old used seals as they have been bombarded with hydrocarbons and assembly lube etc etc and would more accurately represent seals in the engine.

Quote:

Originally Posted by RETed

Side note, I dunno why you would claim the Ford coolant is the best.
I'd be suspicious of anyone recommending to put ANY Ford part into my cars.-Ted