2016 Jeep Grand Cherokee Limited 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 Compass, Patriot will stick around for 2017 model year

The Jeep Compass and Patriot may be getting a little long in the tooth, but Fiat Chrysler Automobiles isn't ready to put them to pasture. At least not yet. According to Automotive News, FCA plans to continue producing both models until the end of this calendar year. That will also take them both into the 2017 model year as the manufacturer prepares to introduce their shared successor. Jeep will likely build a stockpile of Patriots and Compasses to bridge the gap until the new compact Jeep arrives. The move is just one of many FCA is making to trim unprofitable car models and increase crossover production. The Jeep Cherokee is set to move from its current home in Toledo, OH, to the plant in Belvidere, IL, where the Compass and Patriot are built; the same plant was also home to the recently discontinued Dodge Dart. With Cherokee production gone, the Toledo plant in turn is being retooled to increase Wrangler output by 50 percent, including temporary parallel production of both the new model and the existing one. Meanwhile the replacement for the Compatriots, as they're colloquially known together, is expected to debut this summer in Brazil. Production is slated to take place, both in Brazil and in Mexico, starting January 30, 2017, with production of the Compass and Patriot reportedly to continue in Belvidere until December 23 of this year. By that point, the Compass and Patriot will be a full decade old, having been introduced in 2006 as 2007 models. Along with the Dodge Journey, they're the last FCA products still based on the PM/MK platform shared with Mitsubishi. The Japanese automaker still produces several models on the version it calls GS, including the Outlander, Outlander Sport, and Lancer. Related Video:

Vile Gossip | Adventures in tire testing

Jean Jennings has been writing about cars for more than 30 years, after stints as a taxicab driver and as a mechanic in the Chrysler Proving Grounds Impact Lab. She was a staff writer at Car and Driver magazine, the first executive editor and former president and editor-in-chief of Automobile Magazine , the founder of the blog Jean Knows Cars and former automotive correspondent for Good Morning America . She has lifetime awards from both the Motor Press Guild and the New England Motor Press Association. This is her first column for Autoblog — look for more Vile Gossip in the future. I began writing at Car and Driver magazine back in its golden age in the 1970s, before I'd actually read it. I knew very little about cars. The only magazine I read religiously was Four Wheeler because I owned big trucks and liked to go off-roading with my Chrysler Proving Grounds friends. My vast 10 years of driving experience up to that point (high-speed dirt-road idiot, taxicab driver, Chrysler Proving Grounds test driver) had less bearing on my being hired at Car and Driver than the fact that the editor just wanted to rile up the all-male staff. He didn't need me for that. They were already in full dudgeon when I arrived. They'd just spent a chunk of time testing a stack of tires for their big tire-test issue, and the editor-in-chief was toe-to-toe with the technical editor over the rankings of the top 10 tires. It was loud, and it was angry. I had no idea that car magazines tested tires. Cab driving had led me to believe that airing up a tire and changing a flat was all you needed to know. I changed so many flats on that cab, I eventually wound up in front of a live audience on the " Oprah Winfrey Show" demonstrating my brilliance with a jack and a tire iron. My point, of course, is that tires are more controversial, and also more essential, than you'd think. My other point is that it's good to get worked up about the subject, but not quite so good to let yourself be seen, as I did, on my hands and knees with my ass up in the air on national TV. This is how I prefer to test a tire: First, pick a top brand. Then accept their invitation to try and beat the crap out of their tire. I chose Yokohama, celebrating its 100th anniversary this year. The big news for them was the GEOLANDER M/T G003!