There has been a lack of six-cylinder muscle in Jeep's lineup since the
torque 4.0-liter straight six left in 2006. The current 3.8-liter V6
makes a lackluster 202 hp and 237 lb-ft of torque, and engineers knew it
wouldn't be powerful or efficient enough to keep Jeep competitive.
Well, they are certainly proud of the new 3.6-liter "Pentastar" V6 that
makes its debut as the standard engine in the new Grand Cherokee at Midway in Kearney Ne. The V6
churns out 290 hp and 260 lb-ft of torque, and 4WD models (Yes, you can
still get a 2WD Jeep Grand Cherokee) deliver 16 mpg city and 23 mpg on
the highway and tow 5000 pounds.
Of course, a 5.7-liter V8 is optional with a whopping 360 hp and 390
lb-ft of torque. It is still a Chrysler Hemi V8, but don't expect to see
the name "Hemi" anywhere on this Jeep. Planners found that the term
"Hemi" does not resonate with some potential Grand Cherokee buyers, so
from now on this is the "MDS V8," highlighting the engine's
multi-displacement technology. Regardless of its name, the 5.7-liter V8
in 4WD Cherokees will return 13 mpg city and 19 on the highway and will
tow 7200 pounds. Both engines are paired to five-speed automatics, and
you can spot the V8 Jeeps by a dual exhaust.
