2012 Dmax 4x4 crew cab 2500. "bio-diesel"... +18MPG alone... up to 16MPG towing but varies... can be 12MPG with good headwind and serious hills. Speed kills MPG... so does 'bio-diesel'... at least in my truck. But the exhaust needs ketchup.
Have had bad glow plug, blown electronics in the seat fans/heaters, first batteries lasted only a year... Replaced all gear lube at 50kmile... Driver seat lumbar device failed because the seat structure is weak... Riveted in place, works fine now... runs great...
Peace and Blessings..