Jeep is now offering the mighty 2011 Grand Cherokee with a 3.0 liter MultiJet II Turbodiesel they’ve borrowed from Fiat. This model is destined for Europe and what better place to debut for it other than Geneva Motor Show at the heart of the continent.
This diesel unit delivers 177 kW (241 hp) at 4,000 rpm and torque of 550 N•m (406 lb-ft) at 1,800-2,800 rpm in the Jeep. so it’s not quite the same feeling as having a big V8 under the bonnet, but it has its advantages in terms of economy as it does 8.3 L/100km on the combined cycle, an improvement of 17 percent over the prior diesel engine with CO2 emissions (combined cycle) also reduced by 17 percent, now at 218 g/km.
It is a brilliant engine, but 240 hp might not be satisfying in a car the size of the Cherokee and it may also let you down a bit in heavy off-roading. Of course if you buy the SUV just for the way it looks and barely live the city, the the diesel is the better option as it’s lighter on fuel.
In Europe the 2011 Jeep Grand Chrokee comes in Laredo and Limited trim lines in addition to the Overland version. The Laredo and Limited trim lines will be available with the 3.6-liter V-6 Pentastar engine and new 3.0-liter turbo diesel, while Overland will be available for the total engine lineup.
More details on the V6 turbodiesel engine:
Engine Performance Features
The induction system includes swirl control to optimize combustion. Fitted between the intake system and the combustion chamber, the swirl control effectively provides an ideal air/fuel mixture at all levels of engine speed.
Precise fuel delivery is through a 1,800-bar common-rail fuel-injection system. Thanks to the new MultiJet II technology, which makes use of a special balanced solenoid valve, the new injector is capable of making up to eight injections per cycle with the possibility of managing the two main injections in a single modular profile (IRS – Injection Rate Shaping). This guarantees a reduction in consumption and polluting emissions of approximately 2 percent compared to a traditional injector and ensures a drastic reduction in noise levels.
The new 3.0-liter diesel engine utilizes a single Garrett VGT 2056 turbocharger with variable turbine geometry. Compact and lightweight, the turbocharger provides near-instant response and includes an air-to-air intercooler.
Fuel Economy and Emissions
Fuel economy for the Jeep Grand Cherokee with the 3.0-liter turbo diesel engine is rated at 10.3 L/100 km on the urban cycle and 7.2 L/100 km on the extra-urban cycle. For the combined cycle, the fuel economy is rated at 8.3 L/100 km.
The engine is designed to run on EN590 ultra-low-sulfur diesel fuel.
For this engine, cast-iron exhaust manifolds are utilized. Additional emissions controls include a close-coupled diesel oxidation catalyst and standard diesel particulate filter. Euro 5 emissions are met through an exhaust-gas recirculation (EGR) system that includes an EGR valve with DC motor and a high-performance EGR cooler with bypass valve.
CO2 emissions are reduced to 270 g/km for the urban cycle and 188 g/km for the extra-urban cycle. Combined-cycle CO2 emissions are now 218 g/km.