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Originally Posted by Blue Thunder  Just the provision of a center differential doesnt make it full-time 4x4. For a vehicle to be called full-time 4x4, there should be no provision to shift to 2WD : there may be a gear-lever for shifting between 4H and 4L, but no possibility to shift to 2WD. There definitely will be a center differential. |
Some full-time 4x4 systems allow you to be in 2WD to improve FE. One example of this is the Pajero Super Select 4x4 systems. They can be driven in full time 4x4 or in two wheel mode. Driving it in full time four-wheel drive mode doesn't hurt the vehicle in anyway since all three differentials are open. So you don't care about FE, you can always leave it in Full-time 4x4 (awd) mode and apart from the drop in FE there are no other issues..
Samuri:
My understanding of the Suzukui 4x4 system is that it is the same Borg Warner Torque on Demand system that came on the Isuzu Trooper (also owned by GM). This system has the same center diff like the Land Cruiser or Pajero, but sensors will enable torque to the front wheels only if slippage is detected. But of course you can lock the center diff if needed.
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Originally Posted by sbasak I may be wrong, but most likely Toyota Land Cruiser (Prado) has central diff. |
This is true most of the time for exampl ein the Land Cruiser AWD system. But some cases you can do it manually like in the Mitsu Super Select System or automatically like the Borg Warner TOD system employed in the Isuzu Trooper and GV (Need to confirm this)