I have seen several thread where people are wishing for a diesel option for the FJ Cruiser. Is it fair to assume that a diesel engine would weigh quite a bit more than a gas engine? How would that affect the off-road capabilities of the truck? I would imagine that Toyota would use stiffer springs to compensate, but more mass is more mass, and I would expect it to be a little tougher to get a heavier rig up a slippery hill. Or is it possible that the diesel engine wouldn't weigh more than the gas engine? How well suited to off road use is a diesel motor? Is the extra down low torque usefull enough to negate the extra weight? Does Toyota have any diesel experience?