1999 Jeep Wrangler 4x4 4 Cylinder, 5 Speed on 2040-cars

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Chrysler 3.0L EcoDiesel V6: Autoblog Technology of the Year finalist

Offering a diesel engine in an American pickup is anything but new - Ford, General Motors and Chrysler all offer excellent and almost impossibly powerful oil-burning engines in their various fullsize trucks. What is new and novel about the 3.0L EcoDiesel, though, is its size, and the variety of vehicles that use it. It's the smallest engine, as far as displacement is concerned, currently offered in a large truck in the US, and, for 2014 and 2015, it is available in the Ram 1500 and the Jeep Grand Cherokee.
Though it may be small, it's got muscle. While 240 horsepower isn't particularly impressive these days, the engine's 420 pound-feet of torque more than makes up for that. The torque rating is even greater force than even the big 5.7-liter Hemi can muster. Chrysler's well-regarded eight-speed automatic transmission makes the most of all that bull-headed pulling power in both the Ram and Grand Cherokee. Chrysler claims the Ram EcoDiesel 1500 can tow as much as 9,200 pounds when properly equipped, which makes it "90-percent of the Hemi with a night and day difference in fuel economy."
Make no mistake; it's that promise of a sizable fuel economy improvement that many long-haul truckers will be most interested in. In the Ram 1500 that we tested for our Tech of the Year competition, the diesel engine costs $2,850 more than the gas-fed V8, and Ram estimates that EcoDiesel buyers will pay off their investment when compared to the Hemi engine in less than three years, which is considerably less time than the 4.5 or so years the average buyer will keep his or her fullsize pickup. The more you drive, the more you'll save, and the math proves equally as effective in the Jeep Grand Cherokee.

Jeep Wrangler Polar is a tasty frozen treat

Perhaps it's because we've seen so many kitted-out examples over the years, but it seems to us that the Jeep Wrangler tends to wear its special-edition duds better than most models. It might be the icon's familiar rectilinear proportions or the inherent bolt-on look of its extremities - bumpers, mirrors, lighting, and step rails - but we've seen precious few factory specials that look anything but excellent.
Case in point: this new Jeep Wrangler Polar unveiled at the Frankfurt Motor Show. This European-market limited-edition model is said to be a celebration of winter driving, which evidently works out to a body-color hardtop, black-accent seven-slot grille, 18-inch gloss black wheels, Trac-Lok limited-slip differential and a hard hat for the spare tire. Finished here in Hydro Blue (Billet Silver Metallic and Bright White are also available) and a black interior with Polar White accents, the Polar edition features badges displaying 78° S and 106° E longitude and latitude coordinates for Vostok, Antarctica.
This new Jeep will be available in both standard and Unlimited formats with either the 3.6-liter Pentastar gas engine or the still-not-for-US 2.8-liter turbodiesel when it bows early next year. For further details, check out our gallery above and the press release below.

Chrysler axes old V6s, goes all-Pentastar

Old technology has a way of lingering on, particularly at Chrysler headquarters in Auburn Hills. So while the Pentastar V6 has replaced the older engine architecture in just about every application, it still soldiered on in some export markets. But the introduction of a new 3.0-liter Pentastar V6, produced in Michigan and meant only for the Chinese market, has put the final nail in the old engine's coffin.
Fitted into the 2014 Jeep Grand Cherokee and Jeep Wrangler just introduced to China at the Chengdu Motor Show, the downsized six uses the same architecture as the larger 3.6-liter Pentastar V6. But because of its 2,997cc capacity, it can be exported to China without the increased duty the 3.6-liter or even 3.2-liter Pentastar engines would incur. The 3.0-liter V6 develops 230 horsepower at 6,350 rpm and 210 pound-feet at 4,400 rpm.
Admittedly, it's unlikely, but even though the engine was said to be created solely to undercut tax thresholds in China and Europe, the 3.0-liter Pentastar has recently surfaced in rumors of an application here: as the boosted heart of a potential Cherokee SRT with anywhere from 375 to 410 hp.