Quote:
Originally Posted by fmugur
The boiling temperature is higher than water but it doesn't mean the fluid is going to be hotter, just the pressure will be lower since it's not trying to turn into steams.
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You don't get steam until it boils. Until then, you just get hotter liquid.
And since the coolant being discussed doesn't transfer as much heat as regular coolant (or as water, for that matter) that heat isn't carried as efficiently to the radiator. As long as the stock radiator has enough capacity to still cool it, you will be fine. It will just be more likely to overheat in a situation where there isn't enough radiator capacity.
That is the problem with products like this, they are solving problems that don't exist. If your current coolant doesn't boil (and you would know if it did) then what is the benefit of putting a higher-boiling-point liquid in instead, especially if it doesn't conduct heat as well?
It's a side note, but it isn't an approved BMW coolant, because it doesn't have the right specs for the job.
Good luck, let us know how it works out.
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