Evans Waterless Coolant

[fastd]

I haven't seen anything recent about this product; anyone using and have an opinion?

From what I can gather, seems like it works pretty well depending on prep and application.

Benefits: no water = lower corrosion, no pressure due to higher boiling point = easier on the system and no pressurized leaks, no silicates = easier on the water pump

Cons: expense (but really not that bad when factoring longer term benefits), potential higher operating temps if not enough cooling capacity (guessing), might cause leaks if gaskets are porous.

Flammability - doesn't seem to be an real issue compared to other antifreezes.

Conversion - not easy to get all the water out - can have up to 3% water - gonna use in a new, dry block so not an issue for me.

[Mark IV]

There was a long thread on this a few years back. I know a couple who tried it and eventually went back to gylcol coolant.

[4pipes]

I used it until I heard that if it gets in the crankcase the bearings are immediately toast.

[DanEC]

I have a friend using it in a 69 Hemi Roadrunner he is just getting up and running. He seems to think it helps and has benefits. But it is expensive - will make you cry if you suddenly blow a hose or something.

[Jim Vander Wal]

I ran it, came in a Superformance that I bought used.

It works as advertised, great on the system, no pressure leaks, water pumps like it, no corrosion and cools well.

It's messy and as previously indicated doesn't mix well with water. Changing cooling system components is more of a chore.

It's an oil (thin hydraulic something) and it will cause the same problems on racetracks as engine oil if it leaks.

It's not for me but I'm always opening something up.

I have friends that like it.

Jim

[Joey.S]

I have Evans in my cobra since I built the motor 7 years ago no problems with it so far, rad and overflow tank are spotless no dirt or corrosion runs cool.

Joey.S

[olddog]

As stated earlier there have been past threads, where this was debated. One thing that stuck in my mind, is that if you pop a hose or blow a water pump seal, you either have it towed, or you make a mess of things pouring water into it to get it home. These cars get driven very little and I have never lost my coolant in the Cobra, but I have a few times in my daily drivers over the years.

In theory, the stuff is wonderful if you want to run a tad hotter or cannot ovoid running hotter. A lot of big block engines of all makes back in the 60's could barely keep from boiling over in stop and go traffic on a hot summer day. Full throttle for more than a short burst got them hot pretty fast. This stuff allows a higher temp without boiling, and the higher temp increases the delta temp between the air and radiator increasing the BTU exchange capability. An engine can run hotter, provided the oil doesn't get too thin. However the larger the heat range of the engine the more thermal expansion the engine goes through. When bolting aluminum and cast iron together, more temp range equals more dissimilar thermal expansion, to work on your gaskets. It's all theory and fun to argue, but the reality is, small changes are not likely to push you over the edge and cause a failure.

There's no doubt this stuff will work. In some ways, better, at the cost of some undesirable side affects under some circumstances that may never happen. Is it worth it? It is debatable, but to get hard numbers, it depends on luck mostly.

[Horseracejudge]

Hi everyone,

Before you make the change you need to find someone that has made conversions to Evans and has the right equipment to prep and evacuate any residual water based coolant from the block. When the Evans fill is completed there should be 1% or less when it is tested.I've been running it for 3 years with no problems. Car runs cooler. 7 lbs. pressure & a higher boiling point. No electrolysis. I'm in New Jersey and got the Ida Automotve in Morganville, NJ as a recommended shop to make the switch from Evans.Check out their site. Theses guys are the real deal. They can do it all. Bob the father is a well known boost tuner and did my conversion. His son Rob is a builder and custom designer. They've won SEMA and set speed records at Bonneville. They are also known for Tucker restorations. They can build, fabricate and tune anything. They have a 4 wheel Dyno thats good up to 1500 HP. Nick