New York, Apr 8, 2009 - Chrysler LLC
introduced today an all-new line of V-6 engines that will improve fuel
efficiency across the Chrysler, Jeep® and Dodge lineup by 8 percent
on average compared with previous Chrysler V-6 engines. This more
refined and fuel-efficient V-6 engine will ultimately replace seven
current Chrysler V-6 engines.
The new 3.6-liter V-6 engine-named Pentastar-is part of the company's
overall $3 billion powertrain offensive. It will first be offered in
the all-new 2011 Jeep Grand Cherokee, unveiled today at the New York
International Auto Show and at the Jeep Safari in Moab, Utah.
"Chrysler's all-new 3.6-liter Pentastar V-6 engine will offer our
customers improved fuel economy, refinement and increased performance
across the Chrysler, Dodge and Jeep vehicle lineup," said Frank Klegon,
Executive Vice President-Product Development, Chrysler LLC. "At the
same time, replacing seven current engines with one engine will result
in increased flexibility, more efficient operations and significant
cost savings to the company."
The Pentastar is an all-new design, featuring double-overhead camshafts
(DOHC) and a high-pressure die-cast aluminum cylinder block in a
all-new 2011 Jeep Grand Cherokee
, the all-new 3.6-liter
Pentastar V-6 engine will deliver 280 horsepower (209 kW) at 6,400 rpm
and 260 lb.-ft. (353 N•m) of torque at 4,800 rpm-an increase of 33
percent in horsepower and 11 percent in torque over its
predecessor-while providing an 11 percent fuel economy improvement.
"The all-new Pentastar is the most advanced six-cylinder engine
Chrysler has ever offered," said Bob Lee, Vice President-Powertrain
Product Team. "This new family of engines uses an architecture
conceived with future technology growth and integration in mind."
The new Pentastar V-6 also will contribute a 2 mpg increase to
Chrysler's CAFE by 2015, resulting in fewer greenhouse gas emissions
and a reduction in oil dependence.
Customers Benefit: Fuel Efficiency, Refinement, Quality, Low Cost
During the initial goal setting for the Pentastar program, Chrysler
engineers benchmarked the industry's leading engines to set functional
targets. The result is an all-new engine that delivers truly
world-class customer attributes.
Chrysler's all-new 3.6-liter Pentastar V-6 engine design features a
double-overhead cam (DOHC), narrow included valve angle, cylinder head
and high-flow intake and exhaust ports. This design, combined with dual
independent cam phasing, allows optimum volumetric and combustion
efficiency over the full speed and load range, resulting in an
exceptional, flat torque curve along with high specific power-the
engine's torque exceeds 90 percent of its peak value from 1,600 to
6,400 rpm-which will provide customers with outstanding drivability and
responsiveness, without the need for premium fuel.
"Similar to what we did with the HEMI® engine, our engineers used
the best combination of design features and technologies to create an
engine that satisfies customer requirements," Lee added. "The elegantly
simple design maximizes the functionality of each design element rather
than adding technology to claim a feature. The result gives our
customers everything they demand from an engine today-class-leading
levels of refinement, fuel-efficiency, performance and cost of
The advanced oil filter system eliminates oil spills and contains an
incinerable filter element-more efficient disposal than the typical
spin-on filters, which are disposed of in landfill sites. The use of
long-life spark plugs and a high-energy coil-on-plug ignition system
also helps to reduce cost of ownership.
The Pentastar V-6 is designed to run on regular gasoline, offering a 10
percent reduction in fuel cost compared with premium fueled engines.
The engine also is fully flex fuel capable, offering consumers the
choice of gasoline or E85 fuel without any degradation in performance
The new state-of-the-art Trenton (Mich.) Engine South Plant will be the
lead facility for production of the Pentastar V-6 engine. A duplicate,
new facility in Saltillo, Mexico, will ramp up for the 2012 model year.
All-new Chrysler 3.6-liter, DOHC, 24-valve Pentastar V-6 Technical
Displacement: 3.6 liters
Bore x stroke: 96 x 83 mm
Valve train system: Double-overhead cam with roller finger followers
and hydraulic lash adjusters. Dual independent cam-torque actuated
Fuel injection: Multi-point port fuel injection
Construction: High-pressure die-cast aluminum cylinder block and
semi-permanent mold aluminum cylinder head
Maximum engine speed: 7200 rpm
Fuel requirement: E85 (Ethanol) or unleaded regular, 87 octane (R+M)/2
Emission capability: PZEV