Waterless coolant

[1967bperko]

Last fall I was advised to put waterless coolant into my 1967 383 four barrel Chargers engine after installing a new Aluminum large tube radiator.Not long after that one of my cylinder heads got a crack.I’ve since been reading various articles that are supportive of using the waterless coolant because of it’s higher boiling point, and other articles that say waterless coolant can make your engines heads much hotter than with a 50/50 mix.Well over this past weekend I finally decided to get that waterless stuff out of my entire cooling system. I thoroughly drained and flushed the cooling system 3 times to insure that all of the waterless coolant was completely out of the entire cooling system. I put in all new 50/50 in the system and drove the car to a local car show and back, the factory temperature gauge stayed at a much more normal level than it did running the waterless coolant . This was a lesson learned , that and I wanted to share it with all the those who are considering running the waterless stuff in a stock Mopar street machine.

 

[PurpleBeeper]

Agreed. Water transfers heat better than ethylene glycol (EG). Evans coolant is basically DexCool without any water.

 

[Billccm]

Agreed. Water transfers heat better than ethylene glycol (EG). Evans coolant is basically DexCool without any water.

Really? I thought it was a Flourinert type fluid, or a silicone oil based fluid.

 

[RJRENTON]

Agreed. Water transfers heat better than ethylene glycol (EG). Evans coolant is basically DexCool without any water.

The specific heat characteristics of "water-less" coolant (polypropylene glycol) is less than water. Specific heat characteristics means the coolant's ability to absorb/release heat. You are better off using a 50% mix of ethylene glycol and water plus an ionic surfactant (water wetter.....the same stuff you put in your dishwasher....Jet Dry). The only advantage of the water less coolant is: it won't corrode the metal....but it's at least 2x the cost of conventional coolant. Plus the actual engine's metal temperature is hotter, which may account for your head failure........just my opinion......
BOB RENTON

 

[PurpleBeeper]

The specific heat characteristics of "water-less" coolant (polypropylene glycol) is less than water. Specific heat characteristics means the coolant's ability to absorb/release heat. You are better off using a 50% mix of ethylene glycol and water plus an ionic surfactant (water wetter.....the same stuff you put in your dishwasher....Jet Dry). The only advantage of the water less coolant is: it won't corrode the metal....but it's at least 2x the cost of conventional coolant. Plus the actual engine's metal temperature is hotter, which may account for your head failure........just my opinion......
BOB RENTON

Specific heat is the material’s ability to absorb & hold heat. Thermal conductivity is a chemicals ability to conduct heat….out of the engine’s coolant and into the air. That is what you want and water is way more efficient than ethylene glycol

 

[PurpleBeeper]

The specific heat characteristics of "water-less" coolant (polypropylene glycol) is less than water. Specific heat characteristics means the coolant's ability to absorb/release heat. You are better off using a 50% mix of ethylene glycol and water plus an ionic surfactant (water wetter.....the same stuff you put in your dishwasher....Jet Dry). The only advantage of the water less coolant is: it won't corrode the metal....but it's at least 2x the cost of conventional coolant. Plus the actual engine's metal temperature is hotter, which may account for your head failure........just my opinion......
BOB RENTON

Specific heat is the material’s ability to absorb & hold heat. Thermal conductivity is a chemicals ability to conduct heat….out of the engine’s coolant and into the air. That is what you want and water is way more efficient than ethylene glycol.
Also…FYI - Water Wetter & similar products are “corrosion inhibitor packages”. Antifreeze = water + ethylene glycol + corrosion inhibitor package

 

[PurpleBeeper]

Really? I thought it was a Flourinert type fluid, or a silicone oil based fluid.

It’s ethylene glycol with about 1% water. I was an antifreeze scientist & inventor for several years. I analyzed Evans Coolant (& found an angle around their patent). It’s SUPER close to DexCool concentrate. It’s based on 2-ethyhexanoic acid (fyi)