Auto temps using scangauge, V8 petrol Landcruiser

Hi all, I thought that I would give a report on using the scangauge in my vehicle for my last trip, there will be 2 reports this one for auto temps, so details of vehicle and caravan first.
2003 Toyota Landcruiser 100 series V8 petrol 5 speed auto, 285.75.16 BFG AT tyres, has draws loaded and usual other stuff also 50 litres of water behind front seats.
Caravan, Regent Legend 19ft duel axle pop top ATM of 1960 kg I do not over load the van and believe / hope I am a little under this weight.

There has been a lot of discussion regarding towing in 5th gear in a 5 speed auto, this report is for the 5 speed auto only in my vehicle , I have read that its the high temperature that kills an auto, so I thought I would see how the temps changed when using 4th gear to the overdrive 5th gear, I checked this with the scangauge and yes the scangauge does work in a 2003 V8 petrol Landcruiser, now I am not saying the temp is the only thing that can destroy an auto but would like your feedback on what I record here.

Normal driving not towing auto temp around 90c
Towing normal roads with some small hills 90c to 95c
Towing very hilly this was up the Moonbi Range the temp went up to 115c but cooled down very quickly.
Now to the difference in temps between the 4th and 5th gears was not noticeable under normal conditions, I only let the vehicle go into 5th when the conditions are suitable to do so.

I have posted this just as info, hope it helps. Pete.