Chrysler, Dodge, and Jeep news from Allpar

Ram Hemi 4×4: +2 mpg

Hemi engine with ZF HP8 8-speed transmission

The U.S. government has released fuel economy data for the Ram 1500 4×4 with the eight-speed automatic and Hemi V8 engine, presenting a more complete picture of the 2013 Ram’s fuel economy.

Drivetrain Hemi V6 4.7
6 speed RWD 14/20 n/a 14/20
8 speed RWD ? 17/25 n/a
6 speed 4×4 13/19 n/a 14/19
8 speed 4×4 15/21 16/23 n/a

A high-efficiency V6 Ram (not shown in the chart) easily trumps Ford’s turbocharged V6 models, achieving 18 mpg city, 25 highway. The base V6, though, is nearly as efficient, with 17 mpg city, 25 highway. (Real life usage is likely to show more of a difference.)

The Hemi achieves roughly the same mileage as the 4.7 V8, but provides much more power; one may credit the cylinder shutoff feature for some of that. Rumor has the 4.7 finally ceasing production this year.

The eight-speed is good for two miles per gallon in the one configuration where one may directly compare it with the six-speed, putting it much closer to the V6. One can project that rear-wheel-drive setups (which are lighter and lower) with the eight speed and Hemi should be capable of around 16 city, 22 highway.

The two transmissions are both based on similar planetary gear setups, albeit with another planetary gear in the eight-speed, but the new Torqueflite 8 has a much faster torque converter lock, extremely fast shifts, and many other features to reduce friction and power loss. It also has a much wider range than the older six-speed, which helps highway mileage and allows for more economical axle ratios.

While no official figures have been released yet, test drivers have said that the eight speed feels “much, much faster” than the six speed. Switching from a five speed Mercedes automatic to the new eight speed in Chrysler’s large cars, with the V6 engine, dropped 0-60 times from around 8.7 to around 6.6 seconds, a dramatic improvement; the difference in Ram acceleration is likely to be less noticeable. (Thanks to Allpar member mentalicca.)

July sales forecasts

Dart-Crystal-Ball

While sales numbers won’t be released until a week from today and even though there’s one more selling weekend in the month,...

Wrangler: aluminum and/or hybrid?

As government rules get tighter, and to avoid losing customers if/when gas prices rise, automakers are trying to increase gas mileage. At...

No FCA-PSA Peugeot merger talks (either)

Mad-Scientists-Blackboard-Web

The slow week for Fiat news has journalists scrambling again. Thursday’s Financial Times reported that Fiat-Chrysler and PSA Peugeot have discussed a...

Advisors call for Fiat-Chrysler merger rejection

Cop-Stop-FCA-Web

Institutional Shareholder Services Inc. (ISS), the world’s leading provider of corporate proxy voting services, has issued a recommendation that Fiat shareholders reject...

Categories: Ram and other trucks.


Ram-2014EcoDiesel-Web
Ram 1500 weight close to 2015 Ford?
Stryker Red Challenger Hellcat #1
Auctioning the first Hellcat
Dart-Crystal-Ball
July sales forecasts

Wrangler: aluminum and/or hybrid?


Chrysler Cars at Allpar

Recent Chrysler News

Please read the terms of use! Information is presented to the best of our knowledge. Plans change and sometimes mistakes are made. Any decisions or purchases made based on this site's verbiage or images are done at the reader's own risk. * Mopar, Dodge, Jeep, Chrysler, HEMI, and certain other names are trademarks of Chrysler, LLC. We are not Chrysler. We are not responsible for the consequences of actions taken based on this site and make no guarantees regarding validity or applicability of information or advice. The Webmaster is not an expert. Copyright © 1998-2000, David Zatz; copyright © 2001-2013, Allpar LLC. All rights reserved.