2010 Jeep Wrangler Sport on 2040-cars

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Researchers who busted VW cheating say FCA's diesels dirty, too

The Wall Street Journal today reported on an upcoming report from West Virginia University's Center for Alternative Fuels Engines and Emissions, which is the same lab that investigated Volkswagen emissions cheating. The report, which will be released in a matter of weeks, alleges that 2014 and 2015 model year Jeep and Ram vehicles with diesel engines emit excess pollution. But it does not specify whether the company used defeat devices. Since the report discusses Jeep Grand Cherokees, and that engine is also available in the Ram 1500, it's safe to assume that one of the implicated engines is the EcoDiesel V6, a unit actually produced by VM Motori. It's unclear whether the report covers any of the Cummins engines used in heavier-duty Ram pickups. This report comes on the heels of a federal investigation into FCA's diesel vehicles. That investigation focused on the EcoDiesel engine used in 2014-2016 vehicles. The feds were seeking a fine of up to $4.6 billion. The EPA and the State of California also previously accused FCA of using a defeat device on the same vehicles back in January. FCA, for its part, alleges that the WVU study might have been commissioned by people interested in suing the company, and disputes the testing methodology, according to the WSJ. We've reached out to WVU to confirm which engines are implicated in its study and will update this post when we have more to share. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. News Source: The Wall Street JournalImage Credit: REUTERS/Gary Cameron Government/Legal Green Jeep RAM Diesel Vehicles ecodiesel

500+ hp Stellantis 'Hurricane' I6 previews a world without Hemis

After years of rumored development, Stellantis has revealed its new six-cylinder engine family. The 3.0-liter, twin-turbocharged "Hurricane" I6 will offer V8 power, forced induction torque and six-cylinder efficiency in a package designed to fit into any of the company's North American rear-wheel-drive platforms.  What is "V8 power," exactly? Well, in standard output guise, the new I6 cranks out more than 400 horsepower (the specific figure will vary by application) and 450 pound-feet of torque, while the high-output variant is good for more than 500 horses and 475 lb-ft. The final figures will be dependent on the application. We'll save you a little legwork: In current Ram, Jeep and Dodge products, the 5.7-liter Hemi tops out at about 395 hp and 410 lb-ft, give or take, and the 6.4-liter around 485 hp and 475 lb-ft.    This is a clean-sheet design that is only related to the company's turbocharged four-cylinder by some common measurements. The I6 is exclusively direct-injection (no hybrid/port-injection here) and the two I6 variants share 96 common parts, including the block and oil pan design. The differences are found in their internals, intake plumbing, valvetrain components and the turbochargers themselves. Stellantis is not yet ready to share specs or supplier info for the turbos but says announcements will come from its partners soon.  The standard-output I6 has a compression ratio of 10.4:1 and revs to 5,800 rpm. It will run on regular fuel, albeit with reduced performance; 91 octane is recommended for maximum output. The high-output variant has a compression ratio of 9.4:1 and will rev to 6,100 rpm. That one will require premium. The new I6's advantages go beyond basic power output. Every Hemi family engine currently in production is based on an iron block design, so they're heavy. The aluminum-block I6 shaves weight off the total engine package, even if some of that gets added back thanks to the turbos and their associated plumbing. The standard-output I6 weighs 430 pounds, Stellantis engineers told us; the high-output adds just another 11. Fully dressed 5.7-liter V8s are in the 550-560-pound ballpark, and 6.4-liters close in on 600 pounds.  You may be wondering, "Why a clean-sheet gasoline engine now, when the industry is moving toward battery-electrics?" A valid inquiry, and one Stellantis was prepared to address. While the company will be pivoting to electrification over the next decade, it won't be instantaneous.

Jeep Wrangler pickup's rear suspension is inspired by Ram

Although we've learned about all there is to know about the new Jeep Wrangler, there is still more to discover about its upcoming truck sibling, such as the rear suspension. We knew it would be coil-sprung, but these new spy shots also indicate that the suspension is more similar to what's under a Ram 1500 than the Wrangler SUV. In the gallery above, the first two images compare the rear suspension of a new-generation 2018 Wrangler (left) and the Wrangler pickup (right). Immediately obvious is that the shocks on the Wrangler SUV are mounted at the back of the axle, while the truck's shocks are mounted at the front. It's also possible to see that the anti-roll bar on the SUV is mounted quite high up, while the truck's bar sits much lower, near the base of the rear axle. The third image shows a Ram 1500 on the left and the Wrangler pickup on the right. Here we can see that the Ram shares the same sort of low-mounted anti-roll bars and forward-mounted shocks, along with a Panhard rod. The two aren't quite the same, though. For one thing, the Wrangler pickup's rear axle looks more like the Wrangler SUV's than the one on the Ram. It's possible that these suspension changes were made in an effort to boost the Wrangler truck's payload capabilities. It's also possible that there are some handling quirks to the long truck body style for which a Ram-style suspension was better suited. We'll look forward to learning more about the differences when the truck is revealed, likely in early 2019. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.