Driving that 4EAT

[jetboy]

4EAT is immensely expensive to repair in Norway. How can I drive in order to minimize wear ?

Where I live it's a lot of 60-70 km/h zones, bends, up- and downhill. After only a few days with automatic, I find myself engine breaking a lot in 1st and 2nd gear. Does this means extra wear or is it of no concern?

During urban driving, is D the better option or maybe 2 or 3?

Is it better to actively use manual mode in fluctuating situations or let it run itself?

Edit: On eurocars, apparently the water pump runs a channel to the transmission, probably for oil-to-water cooling and it's well under 15 degrees celcius here most of the year, I don't think an additional cooler will help.. but please correct me if I'm wrong.