Attention: TDR Forum Junkies 
will be along - but who knows what with the $$$$ of diesel... . not sure anybody will shell out the $$$ for them... .
Jeep Grand Cherokee for 2008
Perhaps most welcome to the average buyer — at least, the average non-Hemi-buyer — the 4. 7 liter engine has been reworked with the lessons learned from the Hemi, and was boosted way up to 291 horsepower and 322 lb-ft of torque. It's also better on gas by a small margin, and can take flex fuels. What’s more, American versions finally get a new diesel engine - the Mercedes 3-liter V6, which provides the best gas mileage of any current Grand Cherokee engine, complete with lots of torque. The Hemi, of course, remains, as does the SRT-8 option. Expected in 2009 is a Cummins V6 turbodiesel, whose factory is still being built; this powerplant should be less expensive but more durable than the Bosch/Mercedes version to be used until Cummins is ready.
Jeep Grand Cherokee for 2008
Perhaps most welcome to the average buyer — at least, the average non-Hemi-buyer — the 4. 7 liter engine has been reworked with the lessons learned from the Hemi, and was boosted way up to 291 horsepower and 322 lb-ft of torque. It's also better on gas by a small margin, and can take flex fuels. What’s more, American versions finally get a new diesel engine - the Mercedes 3-liter V6, which provides the best gas mileage of any current Grand Cherokee engine, complete with lots of torque. The Hemi, of course, remains, as does the SRT-8 option. Expected in 2009 is a Cummins V6 turbodiesel, whose factory is still being built; this powerplant should be less expensive but more durable than the Bosch/Mercedes version to be used until Cummins is ready.
