article thumbnail

Study finds that increased vehicle travel and decreased occupancy have undercut the impact of improving fuel economy over last 40 years

Green Car Congress

From 1970 to 2010, vehicle distance travelled in the US increased by 155% (from 1.674 trillion km to 4.260 trillion km); however, because vehicle load (i.e., Sivak found that while the vehicle fuel economy of the entire light-duty fleet improved by 40% (from 13 mpg US to 21.6 occupants carried) decreased by 27% (from 1.9

article thumbnail

Chevron introduces new category of heavy-duty motor oil for severe duty applications; improved fuel economy

Green Car Congress

division, maker of the Delo brand of heavy duty engine oils, lubricants and coolants, unveiled a new category of heavy duty motor oil designed to address the growth of severe duty applications in on- and off-highway markets. Improved fuel economy over SAE 15W-40 conventional oils. Chevron Products Company, a Chevron USA Inc.

Chevron 210
article thumbnail

NREL study finds 2nd-generation diesel hybrid delivery vans show significant gains in fuel economy over conventional vans

Green Car Congress

Laboratory and in-use fuel economy results Source: NREL. The NREL team collected and analyzed in-service fuel economy, maintenance, and other vehicle performance data on 11 hybrid (P100H) and 11 conventional diesel (P100D) step vans operated by the United Parcel Service (UPS) in Minneapolis. Click to enlarge.

article thumbnail

Cummins/Peterbilt SuperTruck shows 54% improvement in fuel economy, 61% improvement in freight efficiency

Green Car Congress

The new SuperTruck achieved a 54% increase in fuel economy. and Peterbilt Motors Company, a division of PACCAR, released test results showing their demonstration SuperTruck tractor-trailer achieved a 54% increase in fuel economy, averaging nearly 10 mpg US (23.5 Click to enlarge. Cummins Inc. Earlier post.)

Peterbilt 342
article thumbnail

GM Korea introduces Alpheon eAssist; 25% improvement in fuel economy

Green Car Congress

The new Alpheon eAssist, which will go on sale in November, offers improved fuel economy of 25% and reduced CO 2 emissions of 22% compared with the standard Alpheon model. N·m electric motor generator. N·m electric motor generator. The Alpheon eAssist offer fuel economy of 14.1 Earlier post.).

article thumbnail

Tula Technology reports up to 18% fuel economy gain in GM 6.2L V8 using Dynamic Skip Fire technology; emissions benefits too

Green Car Congress

In a paper presented at the 2016 SAE World Congress, Tula Technology, developer of Dynamic Skip Fire (DSF) cylinder deactivation technology, reported significant fuel economy gains of up to 18% over a conventional GM 6.2-liter Meaning, DSF reduces fuel consumption by 14-18% over V8. liter V8 by operating using Dynamic Skip Fire.

article thumbnail

Hyundai Introduces New Sub-compact Sedan Concept at 2010 Moscow Motor Show

Green Car Congress

Hyundai Motor Company introduced a new sub-compact family sedan concept RB at the 2010 Moscow International Motor Show (MIMS). DOHC in-line four cylinder gasoline engine that features multiport fuel injection with CVVT (Continuously Variable Valve Timing). The estimated power and torque of the 1.6

Hyundai 218