
Originally Posted by
niky
Using a higher pressure radiator cap does indeed raise the boiling point of the water... which helps keep the coolant from boiling over... which helps prevent coolant loss in hot traffic.
Running pure water, will decrease the temp at which the coolant will boil, but not to the point where you should have problems.
Running with the radiator fan in "rekta" mode and without a thermostat, you're wasting a lot of gas... the car will be taking a whole lot longer to get to operating temperatures... which is bad for economy.
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The metal shavings suggests that you might have a water pump problem, which is causing the high temperatures. Should also replace the hoses. Old hoses can expand, which decreases the pressure of the cooling system... which can lead to premature boiling of the coolant.
Given you've got shavings in t