Here is another update from my latest trip to Sth Australia towing a camper fully loaded.
Now I was near on 4 tonne all up and headed up the Western hwy with that very long hill near Melton with the temps never getting over 90.
Later in the day we were near Horsham where the outside temps were in their 40's and their was a head wind I was at one stage sitting on 115kmh (did not mean to) and the temps got to 97 and held until I got back down to 105kmh then the temps sat at 92.... and if I went down to 100kmh the temps dropped to below 90.
All temps held and never continued to climb and when driving through small towns the temps very quickly dropped to low 80's.. all this is disgusting heat and towing fully loaded.
The car handled everything with ease and was never bothered.
To say this is one of the best mods I have done is an understatement and can easily justify the price of the pump.