"Engine ice"?

[DGXR]

I have used Hy-Per Lube super coolant (equivalent to water wetter) in my Corvette a couple times and I noticed a couple degrees cooler operation (digital gauge) in equal running conditions and temperatures: highway cruising at 70, super flat road for many miles, 85F degree ambient temps. I have done this drive over and over for many years so I do have some basis for comparison. It's not enough improvement for someone like me to continue using it because I am mostly an everyday driver. But I believe it does work and may be a good thing for hard driving people to use.

 

[kschachn]

Originally Posted by DGXR
I have used Hy-Per Lube super coolant (equivalent to water wetter) in my Corvette a couple times and I noticed a couple degrees cooler operation (digital gauge) in equal running conditions and temperatures: highway cruising at 70, super flat road for many miles, 85F degree ambient temps. I have done this drive over and over for many years so I do have some basis for comparison. It's not enough improvement for someone like me to continue using it because I am mostly an everyday driver. But I believe it does work and may be a good thing for hard driving people to use.

Under steady-state conditions as you describe, isn't the coolant temperature regulated by the thermostat? How would the additive affect the set point of the thermostat?