I need to get my coolant/anti-freeze to H2O ratio correct and I can't find this info anywhere! Any help or advice or links would be much appreciated.
OK, people.....answers like "It should be 50/50 ratio" do not help answer the question.

I need to know the actual capacity (in gallons preferably).

Thanks.

The antifreeze/water ratio in virtually every system I have heard of has been 50/50. Even in industrial equipment.

if you own a mx73 cressida with a 7mge or 6mge you will find the system holds approx 12 litres of water this includes the motor in australia in the colder states where the temp goes down to approx minus 6 we would use 4ltrs of toyota coolant in the states wher it only goes down to approc 0 degrees we use 3 ltres hope that helps