I am literally an anti-freeze scientist with access to $100k anti-freeze testing and analysis equipment.
1. Evans is snake oil. It is DexCool concentrate (not diluted 50/50). Water removes heat better than propylene/ethylene glycol. The book referenced in an earlier post is wrong....sorry.
2. In general, any coolant that is rated ASTM D3306 will be fine in a car.
3. Don't mix coolants
4. Use distilled or de-ionized water
5. Water Wetter is simply the organic corrosion inhibitor package of antifreeze. Water Wetter sucks vs. aluminum corrosion (Royal Purple's claims about this are correct - I ran the same testing an verified it). The idea about "surfactants allow more intimate water contact with the radiator so it cools better" is 100% [censored]. Those surfactants just make your coolant foamy (not good)
6. Water Wetter/Puple Ice/etc should be blended with water, not antifreeze, if you want them to do what they claim. The real "cooling trick" is removing ethylene glycol and replacing it with water (see #1)
7. The closest to the original Mopar coolant is "Peak Green"..... a very specific Peak with the name "Peak Green", not just any Peak product that happens to be green
8. COLOR of antifreeze means ABSOLUTELY NOTHING.... it'd dye... it's food coloring.... I've manufactured many, many products that are exactly the same, but only have a different dye added to them. Insider tip....Royal Purple's Purple Ice (purple) & Lucas' Super Coolant (blue) are identical in every way except the color (no [censored]). They both protect aluminum better than water wetter, but don't last quite as long (a few years or so)
9. About half the coolant sold today is some form of DexCool. The "Death Cool" thing is long gone and was related to gasket material not being resistant to 2-ethylhexanoic acid (DexCool) and that problem was fixed 20 yrs ago.
THANK YOU SIR
While I am not an antifreeze or chemical engineer my background in engineering is quite broad and I was TAUGHT before one can make claims with any validity. The tests need to be repeated a minimum of 5 times back to back in a controlled laboratory environment.
I have tried many "special" products over the years (water wetter, high flow water pumps) as well as many others and found MOST of the claims to be falsehoods. But they do what they were conceived for, to get $$ from your wallet to theirs.
years back one of the magazines published an article on Total seal piston rings. they made 3 pulls on their dyno mule that had God knows how many runs on it and established a baseline of 400 HP. They proceeded to hone and re ring the motor. New pulls netted 410HP, WOW a 2.5% gain from just changing to total seal rings. BULLS--T. There were so many holes in that claim that it would take a while to type out. But I'll bet there was a spike in the sales of Total seal rings
