I found it depends on ambient temps.
Since being in Aus (November) my cooling system wasn't great. When temps got upto 40-45c it struggled. Did a few things and it improved. Its now good and sits at 90 again with 95 when pushed hard and ambient is 35+
However, the truck is now empty and I use it to commute. So I dont know whats going to happen when its loaded again and towing the sankey! We will see.
UK built 90, not designed for Aus :( could do with some AC!
G

