chris kuba
Member
- May 31, 2003
- 83
- 0
The original NPG formula was propylene glycol but the NPG+ product is a propylene + ethylene glycol. You're right - the glycol has substantially less heat capacity than a water based coolant BUT, in practice the engine actually runs cooler --and in my case -- much cooler !! BE [before Evans] my engine, pipe and radiators were too hot to touch - practically smoking. Now, I can lay a hand on all of those parts after riding it hard. In theory, water with it's greater heat capacity will remove more heat, but in practice - where the water is boiling and insulating the metal surfaces with steam bubbles, far less heat is actually removed from the engine.Originally posted by BRush
Intriguing stuff. Since evans coolant is 100% propylene glycol, its heat capacity is substantially less than water or coolants containing water. Your engine is going to run hotter with evans.
Originally posted by Jaybird
Folks, lets get real here.
Evans is 100% propylene glycol.
You can purchase 100% propylene glycol at any AutoZone for about 5 bucks a gallon.
But then some feel much better throwing 27$ a gallon down the drain.
(sheesh)
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