2002 Grand Cherokee Special Addition 4x4 on 2040-cars

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Federal investigations about safety of rear-mounted gas tanks is nothing new

The National Highway Traffic Safety Administration and Chrysler are currently making waves in our daily news feeds due to a disagreement over the safety of a few million Jeep Liberty and Grand Cherokee models. Specifically, NHTSA has asked Chrysler to recall the SUVs because of the location of their fuel tanks, but you may be interested to know that requests such as this are nothing new.
Besides the two Jeep models, NHTSA has launched investigations over the years in such models as the Ford Crown Victoria (and its police-car counterpart), GM pickups built between 1972 and 1987, and rather famously the Ford Pinto.
Understanding how automakers and NHTSA have dealt with fuel-tank-safety concerns in the past may offer a better understanding of how Chrysler and the government agency will settle their current dispute. Check out the complete article from The Detroit News here.

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.

Next Jeep Wrangler spotted with 8-speed and EcoDiesel

Although it may not look like it, there are big changes coming to the next-generation Wrangler. The 2018 model will use aluminum for weight savings, spawn a pickup version, and offer new engines. This latest set of spy images brings confirmation of two new powertrain items. The spy photos below show a Wrangler mule with the current interior and an eight-speed automatic shifter fitted in place of the old five-speed unit. (There's a comparison photo in the gallery.) The shifter design matches that of the refreshed Dodge Charger and Challenger; the final Jeep version is likely to differ, but this clearly indicates what kind of transmission is underneath. Chrysler builds eight-speed automatics from a ZF design and also uses some transmissions built by ZF. View 4 Photos While it's not visible in the photos, the unmistakable sound of a diesel was heard coming from this Jeep. The EcoDiesel V6 is expected to be available alongside a new turbocharged four-cylinder engine that is rumored to have the code name "Hurricane." The turbo four may completely replace the current gas V6 or be offered in addition. There's a good chance the eight-speed will also be paired with the Hurricane engine, since improved fuel economy is a goal for the new model across the board. We don't yet know whether a manual transmission will be offered again, but it's a pretty good bet for one of the gas engines since many diehard off-roaders prefer the ultimate control. Related Video: Featured Gallery 2018 Jeep Wrangler Detailed Spy Photos View 18 Photos Spy Photos Jeep SUV Off-Road Vehicles jeep wrangler unlimited