This is true, when a car has regulations for Africa climates, it's equipped with bigger water cooler and oil cooler. Also the Air-filter is passing through oil, to catch the dust.
All the other cars you had, when opening motor bonnet, the Hot air was coming to your face like this car?
Many times i really feel that this motor is going to melt.
All korean , japanese cars, never have this feeling when opening bonnet.
Note that the temp gauge is going a bit less than middle, no more.
I am sure it's caused by the pre-cat, cause it's turning a lot of exhaust gases back, and it makes heat. This is called backpressure.
This is the reason why ALL santamos, produce no noise from the exhaust. Most times hear motor noise, never heard my exhaust.
The same car as spacewagon, about same motor, and it's engine compartment temp feeling is very small.
The spacewagon don't has this pre-Cat.
I take serious your note that motor temp is lower now.
If you have a house thermo OUT/IN TEMP , we take for 3-10 euros, and put it in the engine compartment, then you can make a measurements.
But you had to measure it with them out.
On the other hand, cause i had many turbo cars, still have them parked without licence, so i got this thermo-tape, which is a 5cm wide roll of tape, which if you pass around exhaust manifold, or exhaust tubes, you will see it grabbing a lot of thermo.
Also, it makes exhaust gases more hot, which is better for the car.
I had 15 meters, cheap, from guys selling sea things on the athens dock.
It's lost from me, my best friend, wanted it for his racing car, so gave it.
the below pictures re examples from internet.
I don't have any mine photo.
http://images.quebarato.com.br…s+sp+brasil__315633_3.jpg
I am viewing your post carefully.