I changed my 2011 Can Am Outlander 500 XT to Evan’s waterless coolant this past spring. Used the fluid prep to flush out all the water, then added the coolant to flush out the prep fluid and fill with waterless coolant. Only was able to ride it one time this summer due to a surgery I had, and it ran hot. The radiator fan was on the whole time. Just this morning I ran it just to move it in my shed and it went into limp home mode within 5 minutes due to overheating. For something that is marketed as a power sports waterless coolant, I was shocked. Plan on draining and refilling with traditional long life coolant (SuperTech) this next spring. Very disappointing considering the amount of time and money I spent.
PSA: Don’t Run Evan’s Waterless in ATV
- Thread starter brandon9715
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I wouldn't use this. Matt did a few videos on this stuff.
Yup. I thought the heat transfer difference wouldn’t be huge, but I was very wrong.
I've seen no issues with Evans waterless coolant. That's in several extremely high horsepower motorcycles used in Landspeed Racing. This Turbocharged Hayabusa made 615 rwhp on VP Import gas, at maximum boost. It set a record in it's class at 246 mph, that stood for years.
Probably because you’re always moving. If it was at lower speed it would likely overheat quickly like my quad.
This is why waterless coolants are almost never a good idea for the vast majority of users and applications. They market it as being superior but it is not.
Am a bit surprised, as I remember discussion about it a decade ago, different forum. Looking up heat capacity though, I came across this old discussion.
I recall almost nothing about thermodynamics but it seems that the heat capacity is half, if google AI is to be believed:
So need higher flow rate to utilize well? As in, each unit of volume of coolant can carry half the amount of heat, thus it has to flow twice as fast (I'm assuming that the radiator can be same sized?)?
I recall almost nothing about thermodynamics but it seems that the heat capacity is half, if google AI is to be believed:
So need higher flow rate to utilize well? As in, each unit of volume of coolant can carry half the amount of heat, thus it has to flow twice as fast (I'm assuming that the radiator can be same sized?)?
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