Rotator All-wheel would need information and fuel consumption for the 2.0 engine

Moin, wanted to test a Suzuki Grand Vitara 1.6 today. now he has a rotary control for the four wheel. Neutral, 4H, 4H Lock,4 L Lock Now the switch on N seller said that this is the road setting, which I can’t really believe. First of all, I did not have a test drive to get some advice here. My knowledge: from 4H to Neutral, press this one in to switch to 4H/4L Lock (I think, but I don’t have to be right) What happens t, if you can drive at all, if the position is on Neutral? Seller said that the 2.0 5 door in the city consumes about 10 liters and the 3 door 9 liters. The 1.6 machine would have the same consumption, because of other engine. Can someone tell me something more specific about it? I sold my Frontera B because of the consumption (15-16l) and does not have to go back to a swallow.