(2) 1972 Jeep Jeepster Commando. 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.

2015 Jeep Cherokee finds a bit more fuel mileage thanks to stop/start and aero tweaks

Just a year after it burst onto the scene, Jeep has already made a pretty substantial addition to its V6-powered Cherokee, which has proven to be an extremely popular seller so far for the brand, adding a new stop-start system for the midsize, off-road-ready CUV.
The addition of stop-start included a few aerodynamic tweaks to the Cherokee's polarizing body, resulting in a wallet-pleasing increase in fuel economy. According to the EPA, the front-drive, V6-powered Jeep will now return 21 miles per gallon in the city and 29 mpg on the highway, up from 19 city and 28 highway. Four-wheel-drive, V6-powered Cherokees, meanwhile, will now return 20 mpg in the city and 28 mpg on the highway, up from 19 mpg in the city and 27 mpg.
With 271 horsepower, 239 pound-feet of torque and these newly enhanced figures, it's refreshing to see a larger, naturally aspirated engine that is still able to take the fight to today's crop of small-displacement, turbocharged four-cylinders.

FCA facing class-action lawsuit over Grand Cherokee shifters

Fiat Chrysler Automobiles is now facing a multi-million-dollar class-action lawsuit over the recalled shifter design in the 2014 and 2015 Jeep Grand Cherokee, and the 2012 to 2014 Dodge Charger and Chrysler 300. Grand Cherokee owners, galvanized by Star Trek actor Anton Yelchin's fatal accident, filed the suit. According to The Wall Street Journal, the owners allege that FCA concealed the shifter's problems. On top of restitution, the class action suit is demanding a court order force FCA to issue a do-not-drive warning to owners of affected vehicles until it fixes the problem. FCA started distributing a software fix to dealers last week – according to the WSJ, the update will add more warnings about the shifter's position and will automatically kick the vehicle into park if the driver steps out. FCA's shifter problems have been bubbling under the surface as part of the company's recall issues. The US government dinged FCA with a $105 million fine last year for its recall practices (or lack thereof) last year, but things have exploded this week after Yelchin's death. The 27-year-old, best known for playing Ensign Pavel Chekov in the rebooted Star Trek film series, was killed after his 2015 Grand Cherokee rolled down his driveway and pinned the actor against a security gate. According to Jeep CEO Mike Manley, the company will dispatch engineers to analyze Yelchin's vehicle. Related Video: