The 3.0L V6 turbo diesel engine for the 2008 Jeep® Grand Cherokee incorporates advanced technology that results in excellent fuel economy and driving range.
The 3.7L V6 engine is now standard on Limited as well as Laredo. The fuel-efficient V6 has many features that help improve economy, including: 9.6:1 compression ratio, 58-psi fuel injector system and "thick" wall composite low-restriction intake manifold.
The 4.7L Flex Fuel Vehicle (FFV) V8 engine has many features like the 5.7L HEMI® V8 for improved power and economy including: two spark plugs per cylinder, 9.8:1 compression ratio, and better port flow, The engine features a slant / squish combustion system design.
The 5.7L HEMI® engine, with its unique and economical Multi-Displacement System (MDS), provides power and excellent mpg.
The 5.7L HEMI® V8 engine features the economical Multi-Displacement System (MDS), which deactivates four cylinders when eight are not needed. When cruising at highway speeds between 40 and 60 mph, MDS uses advanced computer technology and electronic throttle control to transform the HEMI® V8 seamlessly from V8 power to an efficient four-cylinder powerplant in 0.04 seconds.
Chrysler estimates that since its inception of MDS in 2005, nearly 100 million gallons of gasoline have been saved, along with reduced carbon dioxide (CO₂) emissions of close to a million metric tons.
The 6.1L SRT® HEMI® V8 engine features free-flowing intake / exhaust manifolds, floating-pin pistons and free-flowing exhaust system for aspirational performance.
Feature Availability
Select model for specs- 3.0L V6 Turbo Diesel Engine (18 city / 23 hwy)(2008 model year only)[2]
- Available on:
- 3.7L V6 Engine (16 city / 21 hwy)[3]
- 4.7L FFV V8 Engine (14 city / 19 hwy)[4]
- 5.7L HEMI® V8 Engine (13 city / 19 hwy)[5]
- 6.1L SRT® HEMI® V8 Engine (11 city / 14 hwy)[6]
- Standard on:
- Five-Speed Automatic Transmission
- Standard on:
- Multi-Speed Automatic Transmission
MPG
/shared/2009/all_vehicles/mpg/jeep_mpg.swftrue- /shared/2009/grand_cherokee/capability/efficiency/primary/mpg/mpg_GRC_09.jpg
- 570
- 29
- 123
- 21 Highway MPG
- 180
- .2
- [1]
- 15.1
- See all MPG ratings
- 180
- content
- see_all_mpg_ratings
- /en/performance/2009/#mpg_grand_cherokee
- Diesel Engine
The 3.0L V6 turbo diesel engine incorporates advanced technology that results in renowned fuel economy[2] and 4x4 driving range for 2008 Grand Cherokee's.
- Driving Range
The 2008 Grand Cherokee has a far reaching 440 mile driving range[7] with its available 3.0L turbo diesel engine.
- Green Story
Paints, adhesives and plastics often contain considerable quantities of solvents. Unhappy with emission levels, the engineers and paint specialists at Grand Cherokee’s Assembly Plant Plant set about devising methods of eliminating solvents.
The outcome is a dramatic reduction in solvent consumption and emissions, and cutting the impact on the environment. The Jeep® Grand Cherokee’s manufacturing plant is super green thanks to a chrome-free phosphate, a lead-free E-coat process, a powder coating prime coat and a waterborne basecoat. The assembly plant is continuing the company's efforts to push powder coating and other technologies to higher levels of quality, performance and environmental friendliness.
- Aerodynamics / Wind Tunnel
The Grand Cherokee was extensively tested in Chrysler’s state-of-the-art Aero-Acoustic Wind Tunnel for maximum slipperiness.
The steeply raked front windshield, roof racks, side mirrors and other key elements were sculpted to reduce drag and wind noise. In addition, hundreds of sound-dampening elements were integrated into Grand Cherokee’s sleek design to reduce noise, vibration and harshness.
- No deductible. Not valid on 2010 models. See dealer for a copy of limited warranty and details. Non-Transferable. Not available on SRT®, Diesel vehicles and certain fleet vehicles.
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