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Jeep has started producing Grand Cherokees with the VM six-cylinder diesel for North America, according to a source who sent in this photo. The diesel option is expensive, but dramatically improves fuel economy and provides stronger torque at lower engine speeds than either of the gasoline engines. With 240 horsepower and 420 lb.-ft. of torque, the 3.0-liter EcoDiesel is capable of towing 7,400 pounds, more than any competitor’s V-8 equipped SUVs; yet, it provides better fuel economy than even the Pentastar V-6 engine. Like the gasoline V6 and V8, it comes with the eight-speed automatic as its only transmission. The diesel’s responsiveness and efficiency are due in part to an extremely high pressure fuel injection system (with 29,000-psi / 2,000-bar fuel pressure, dubbed MultiJet II); swirl-control intake ports; and a variable-geometry turbocharger that cuts turbo lag. The 24-valve, dual-overhead-cam engine is based on a block and bed plate made of..
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