2wd mode? 4wd mode?

ASPW advocates always keeping it in 4wd. Big increase in safety and no difference in fuel economy daw. I think it makes sense because even if you disengage the front drive, the front wheels will still be turning the front axles and differential, so the additional drag from having the 4wd components is still there. I tried with two generations of Pajero and can't really see the difference. The traffic has a much bigger impact on the overall fuel economy.