When I tow my small farm tractor and trailer-approx. 3500 pounds- with my older Toyota Tundra, 4.3 l V 8, my mileage drops from 19 to 14 and can go lower if I climb the passes here on Colorado highways.
Many many years ago I would pull a 3500 pound travel trailer up into the logging woods with my 2400 cc Toyota 4x4 pickup. Mileage would drop from 22 to 9 and top speed was scarcely 50 mph on the flat. These results are from trips far above sea level: 5000 to 8000 feet elevation.
I have no experience with that Toyota diesel you have, but I can imagine your acceleration and cruising speed would drop dramatically as well as your mileage. Braking and avoiding uncourteous other drivers also becomes problematic with so little power. Of course, all drivers in Turkey are fully aware, mindful, considerate, and will give you plenty of room on the road, right??? Just like here in the states. Ha!
