2001 Jeep Wrangler Sport on 2040-cars

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FCA's Pentastar V6 gets more power, efficiency for 2016

Already a vital member of FCA's powertrain lineup, the 3.6-liter Pentastar V6 is receiving major efficiency improvements for 2016. Thanks to a massive amount of new tech attached to the mill, fuel economy is up six percent, and torque below 3,000 rpm jumps nearly 15 percent. The updates arrive first in the 2016 Jeep Grand Cherokee, but they should proliferate to other models eventually. At least in the Grand Cherokee, the tweaks push power up five horsepower to 295 ponies. FCA's engineers went through the Pentastar from top to bottom to eke out as much efficiency as possible. For example, there's now a two-speed variable-valve lift system that can run in low- or high-lift modes. This upgrade is responsible for 2.7-percent better economy, the company claims. A new intake manifold with longer runners and updated variable-valve times also helps boost the torque output. Further improvements come from pushing the compression ratio to 11.3:1, from 10.2:1 before. Perhaps most impressive is that despite all of the innovations, the latest Pentastar actually weighs four pounds less than the current version. Beyond the Pentastar improvements, all of the FCA US gasoline engines, except for the Viper's 8.4-liter V10, will be E15-compatible for 2016. The company says that it wants to be ready for the higher ethanol content fuel's greater use in the near future.

Jeep and Ram do the pre-Super Bowl ad thing again

Fiat Chrysler is experimenting this year with pre-Super Bowl advertising that isn't — yet — Super Bowl advertising. The automaker's released five ads so far this week for Jeep and Ram. including two more today for the new Ram heavy duty trucks. But at the moment there are no plans to run them during the game. With a new focus on efficiency, the marketing team at Auburn Hills wants to see how the spots play online. The latest long-form Ram ads are called "Roll Rams Roll" and "Fourth Quarter," to go along with the long-form spot, "Make Sure of It," featuring the new voice of Ram commercials, actor Jeremy Renner. The latter spot represents the beginning of a collaboration with Ram and Renner. The wide-ranging actor will provide vocals for Ram's new campaign called "Led or Be Led" that begins later this month. "Roll Rams Roll" presents the classic scenario of two folks arriving at a four-way intersection at the same time. This time, however, one party is a seriously gung-ho tailgating crew in a Ram 3500 HD pulling a giant travel trailer, the other is a ginormous herd of Rams that have come from across the country to see their namesakes play. "Fourth Quarter" celebrates the unheralded workers who, like the best players, give their all until the final whistle, no matter how long it takes for that whistle to blow. Over in the Jeep-verse, fresh off of crushing a 1963 Gladiator, the off-road brand continues the association with the band OneRepublic that began last summer. The group mostly lets the images do the singing in the spot "More Than Just Words," which pairs the lyrics of the U.S. national anthem with representative visuals. FCA marketing honcho Olivier Francois called the week's commercials "a taste of what's to come." Whether that taste comes during the game, we don't know. Spots are rumored to cost $5.5 million for 30 seconds this year, up from $5.2 million last year, which comes on top of production costs that run into the millions. If an ad does well online, there's a chance it could appear during the show in Atlanta. Otherwise, you can check them out above and below, and watch out for rumored multi-brand Twitter shenanigans during the game. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. This content is hosted by a third party. To view it, please update your privacy preferences.

Buy this instead of a Wrangler | 2017 Jeep Grand Cherokee Trailhawk Review

In our first encounter with the 2017 Jeep Grand Cherokee Trailhawk at Fiat Chrysler's Chelsea Proving Grounds, we saluted the new model's impressive on-road demeanor. In its off-road mode, however, we couldn't ignore the pre-production throttle calibration – it was super sharp and difficult to modulate with the precision needed to navigate obstacles. We were told then that Jeep's engineers were aware of the problem and were fixing it for production models. So we recently set off for Bundy Hill Off-Road Park in Jerome, Michigan, in a production-spec Grand Cherokee Trailhawk to check their work and get a better idea of the overall package. We can report that the Trailhawk's throttle has been fixed for production, landing it properly in Goldilocks territory. In the off-road Mud setting, the throttle is soft and easy to modulate. You can balance this rig with the gas pedal, reaching just past tip-in to steadily prod forward. But the gas pedal doesn't delay when you really need power. Move beyond the initial tip-in, and the engine responds quickly, which is a good thing, as a sluggish throttle is almost as dangerous off-road as one that's too sharp. Rock mode promises even more precise control over the throttle, although our lack of a spotter and a desire to avoid damaging the 700-mile-young Trailhawk kept us from hitting Bundy Hill's rockier sections. The wet, non-snowy weather meant we didn't properly test Snow or Sand mode. This test model was equipped with FCA's popular 3.6-liter V6, but like the rest of the Grand Cherokee range, more power is available from the 3.0-liter EcoDiesel V6 and the 5.7-liter Hemi V8. You don't need them – the 3.6-liter and eight-speed automatic are perfectly fine on the trails. Faced with an incline, the transmission holds its gear without complaint – you don't even need to switch into manual mode. Despite the 4,800-rpm torque peak, the V6's 260 pound-feet arrive early enough that you don't need to strong-arm the throttle. So that's resolution for the pre-production issue. But our time at Bundy Hill exposed a different and ultimately much easier to fix problem for the production model. Late fall in Michigan is not always a good time to go off-road – sub-40-degree temperatures and a steady, depressing drizzle can turn a relatively simple trail into a slippery mess of wet clay. Conditions like these can easily overwhelm an on-road tire like the Goodyear All-Terrain Adventures the Trailhawk uses.