Best coolant for our 60-70's Mopars?

[mopowers]

Just run a proper good quality coolant additive with straight distilled water and it will be fine in So Cal non freezing areas.

I run Justice Brothers Super Radiator Cooler. I put and extra bottle of Justice Brothers Cooling System Protector for extra electrolysis and corrosion protection when running straight water.

My Chinese aluminum radiator, Edelbrock aluminum heads look fine after 3 years of use. My stray voltage was 76 millivolt (max is 300mV) on 6/10/11 and was so my electrolysis is well under control. When I took the intake off on 3/1/14 is was .83 mV. passages look fine, no rust

Turbo Magazine coolant additive test: http://www.superstreetonline.com/how-to/engine/0703-turp-cooling-system-additives/

Where do you buy that Justice Brothers stuff???

 

[pishta]

Here's the route I went on the Evans.

http://m.ebay.com/itm/131177767857?nav=SEARCH

better...http://www.lubricationspecialist.com/evans-coolant/evans-npg-c-waterless-coolant/

interesting that is says motors run at higher temps (a property of waterless EG) operate more efficiently and MAY provide more horsepower. The properties of a 100% EG coolant (which are most likely not what Evans markets) need to e boosted with an antifreeze as EG freezes at 10F, but mixed with water sends that down to -49F.

"Pure ethylene glycol has a specific heat capacity about one half that of water. So, while providing freeze protection and an increased boiling point, ethylene glycol lowers the specific heat capacity of water mixtures relative to pure water. A 50/50 mix by mass has a specific heat capacity of about 3140 J/kg C (0.75 BTU/lb F) three quarters that of pure water, thus requiring increased flow rates in same system comparisons with water. Additionally, the increase in boiling point over pure water inhibits nucleate boiling on heat transfer surfaces thus reducing heat transfer efficiency in some cases, such as gasoline engine cylinder walls. Therefore, pure ethylene glycol should not be used as an engine coolant in most cases."

Mopar used to state Distilled water with Mopar anti-corrosion addative, best for heat transfer but offers no antifreeze/boil protection (but would never boil over under normal use). Interesting stuff.

 

[BrianT]

better...http://www.lubricationspecialist.com/evans-coolant/evans-npg-c-waterless-coolant/

Not when you figure in $26.65 shipping for a case.

 

[nm9stheham]

As for the no pressure, Evans says this on their site, but then says "Cooling system pressure is greatly reduced as illustrated in the video below." So they are helping to spread this zero pressure info..... does not help, IMO.

If I read the information correctly, the Evans product requires replacement every five (5) years.

If you can find a reference to this, I would appreciate it; I have had no luck in finding any life info on Evans coolant. Evans is a glycol mix so may well have a breakdown mechanism with heat or other things and thus a practical life limit; I have read that ethylene glycol breaks down very quickly when exposed to lots of air for example. Of course, if you don't drive a car very often and don't race it, that life may be a looong time.

Here is some analysis from a company that in some ways may be an indirect competitor to Evans. It is interesting technically, but I would take some of the results as not nessecarrily typical results (like for engine temp elevation). I would read this for general info and looking at the principles of what will happen (like the fact that a 375 degree Boiling point fluid WILL boil in hot spots), and with a grain of salt on the exact numbers.

http://www.norosion.com/evanstest.htm