A warning about Evans Waterless Coolants

From reading this thread I've come to a few conclusions.

STRAIGHT WATER

1) Water seems to be the best coolant for heat transfer but the low boiling point negates it's ability to do the job without turning to steam around the combustion chambers in many (if not all) applications. It is corrosive and doesn't contain lubricants that the water pump needs. For short term use it will work but not during winter.

50/50 MIX ANTIFREEZE

2) The antifreeze mix is going to prevent freezing problems during winter and should help to reduce the low boiling temperature issue experienced with water alone. Aluminum parts are especially susceptible to damage from water's corrosive properties and a 50/50 mix with antifreeze won't prevent that damage from occurring. - So anyone running a lot of aluminum engine components will experience the corrosive effects over time. The 50/50 mix does break down so unless it's changed as recommended it's likely to start filling the cooling passages with sludge. It'd take several years for enough of it to present major problems but a cooling system using it should be flushed periodically to prevent it.

EVANS WATERLESS

3) Initially it's the most expensive option but the price comparison changes if the Evans never needs to be changed as they advertise. If their claims are true, it will negate any concerns about corrosive damage to aluminum parts and will not break down and sludge up the coolant passages. The extremely high boiling temperature should prevent it from turning to steam around the combustion chambers in some motors. That should translate to a reduction in hot spots that could cause preignition. Concerns were raised about a competitor's claim that Evans will coat aluminum parts and that coating interfering with it's ability to transfer heat. If true, any benefit from reduced hot spots might diminish or disappear over time. The Evans is the least efficient at drawing heat from an engine. Straight water and the 50/50 antifreeze mix are better at reducing engine temperatures. That being said, the Evans is supposed to give a more consistent temperature throughout an engine when you include the areas around the cylinders.

MOST IMPORTANT

4) More important than anything else seems to be the recommendation for having a proper cooling system. Without sufficient coolant capacity, air flow, and coolant flow it won't matter which coolant is used.