1999 Jeep Wrangler Sahara Sport Utility 2-door 4.0l on 2040-cars

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Jeep Wrangler diesel likely after 2015 model refresh

We automotive journalists aren't always the right people to ask about whether a US-spec vehicle should or should not be offered with a diesel powertrain (hint: the answer is usually "YES"). But when it comes to the iconic, off-road-ready Jeep Wrangler, we aren't the only ones who have been clamoring for an oil-burning engine behind that famous seven-slat grille. To that end, it appears there's good news on the horizon, as Jeep CEO Mike Manley recently told Ward's Auto that the "Wrangler is on the radar to get (a) diesel."
"I'm confident that the Grand Cherokee will show just how large a demand there is for diesel, and I think what that will do is reinforce the need for us to target Wrangler as a vehicle that can take a diesel," Manley told Ward's. The most rugged of Jeeps is scheduled to get an overhaul around 2015-16, and the diesel powertrain will likely be introduced around that time.
This year alone, Chrysler will be adding a diesel engine to the Grand Cherokee SUV, as well as the Ram 1500 pickup and Promaster utility van.

2014 Jeep Grand Cherokee Diesel and SRT climb onto stage

This is indeed a case of not knowing how much we wanted something until it arrived. We've been big fans of the Jeep Grand Cherokee ever since the new model arrived a couple of years ago, and while the update you see here might seem just a slight refresh, it's actually much more than that.
For starters, the 2014 Grand Cherokee marks the return of a diesel model here in the States, with Chrysler's new 3.0-liter EcoDiesel V6 under the hood, churning out 240 horsepower and 420 pound-feet of torque, mated to an eight-speed automatic transmission. Of course, all of the Grand Cherokee's usual off-road goodies are on hand, with moderate tweaks to make it an even more capable vehicle when the going gets rough. Both the gasoline-fed 3.6-liter V6 and 5.7-liter V8 get the new eight-speed auto, as well.
The high-performance Grand Cherokee SRT also trudges on into the new model year, with very subtle tweaks found underneath the aggressive, slightly redesigned sheetmetal. The 6.4-liter Hemi V8 also gets eight-speed gearing, which Chrysler says will improve not only 0-60 times, but mid-range performance as well. Bring it on, we say.

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.