the once and twice cam take the same rad.

tho think about this. what are the causes of a car running hot.

thermostat gone bad. "thermostat doesnt open R and R"

rad cap gone bad. "too much pressure. R and R"

vapor lock in the cooling system. "open cap start car turn heat on full blast and see if the coolant drops add if needed. *note the rad sits a lil lower than the motor so sometimes you may have to have the car at a slight incline*"

fan clutch going out. "R and R clutch fan or use altima fans, some fabbing needed"

or lastly water pump. "another simple R and R"

coolant container level shouldnt affect it that much. for mine is mount on the fender well. towards the top of the strut tower. and yes i am using a red strip beer bottle w/ t bolts to hold it down.

~skott