Noob question first how much water does the 15 take to fill with the oem rad fitted Next has anyone used this stuff in a sr20 and is it worth the money [cars running 330/bhp at the moment if this makes any difference
I wouldn't use it on a car like this. If you're in to modifying your car you'll have your radiator out at some point plus a well set up system with normal coolant works fine.
the problem is that it works but you have to COMPLETELY drain the coolant system, so radiator, engine, heater matrix, coolant lines, etc etc which is a nightmare,
if it comes into contact with too much water (like a small percentage) its not good :S