Fuel Economy

21  -  40  of  118

August 12, 2014

Medium-Duty Tires Go Fuel-Efficient

The factors driving tire design for medium-duty trucks has changed. Today, tire makers must balance fuel efficiency and bulletproof durability to stand up to a harsh P&D environment.

August 8, 2014

Poll: Americans Want More Fuel Efficient Trucks

While Congress is out on vacation, one lobby group is reminding lawmakers while they are out talking with voters back home that a large majority of Americans favor requiring truck manufacturers to increase the fuel economy of large trucks, at least according to its poll.

August 7, 2014

Direct Drive or Overdrive?

The long-running debate over which type of transmission — direct drive or overdrive — provides the greatest efficiency is one that’s not easily settled and not likely to go away.

July 30, 2014

New Eco-flaps Website

Andersen Flaps has launched a new website at www.ecoflaps.com that highlights its Eco-flaps Splash Guards' fuel-saving and splash reduction benefits.

July 22, 2014

The Benefits of Low-Rolling-Resistance Tires Explained

There's little doubt left that tires formulated for lower rolling resistance work as advertised, but it's still tough to give up at few thousandths of an inch of tread. After all, tire miles are important, too. How much of a difference does the reduction in rolling resistance make?

July 17, 2014

Oil Viscosity: How Low Can You Go?

To meet expected greenhouse gas/fuel efficiency standards, oil companies and engine makers have been busy developing a new standard for engine oils that will provide a new type of lower-viscosity oil to improve engine efficiency.

July 15, 2014

International DuraStar, WorkStar Get 9.3-Liter SCR Diesels

Navistar has started customer shipments of its International DuraStar and WorkStar trucks with the company's 9.3-liter diesels fitted with selective catalytic reduction emissions-aftertreatment equipment.

July 7, 2014

The Peterbilt-Cummins SuperTruck, Part 2: More Secrets Revealed

The Peterbilt-Cummins SuperTruck project achieved almost-unheard-of gains of 68% in freight efficiency over a 24-hour duty-cycle, a 50% improvement in freight efficiency on an 11-hour drive-cycle and a 20% improvement in the thermal efficiency of the engine. How did they do it, and what does that mean?

June 30, 2014

New Oil Standard Won't Have Adhesive Wear Test

A proposed test for adhesive wear, or scuffing, will not be a part of the upcoming new API oil standard, currently known as PC-11, and the new category is running behind schedule for implementation.

June 19, 2014

Daimler Trucks Hits SuperTruck Goals Ahead of Schedule

Daimler Trucks North America said Thursday it has realized the objectives of its SuperTruck program one year ahead of schedule. Sponsored by the U.S. Department of Energy, the SuperTruck program is an ambitious five-year research and development initiative focused on improving freight efficiency, reducing fuel consumption and greenhouse gas emissions of Class 8 trucks.

June 17, 2014

121 Ways to Save Fuel: Drivers

From the equipment you spec and maintain, to the fuel you buy, to driver training and incentives, you’ll find tips for nearly any type of fleet.

June 17, 2014

121 Ways to Save Fuel

There’s hardly a fleet out there that wouldn’t like to save money on fuel costs. Maybe you’re not sure where to start. Maybe you feel like you’ve picked all the low-hanging fruit and you’re looking for new ideas. Here’s help. From the equipment you spec and maintain, to the fuel you buy, to driver training and incentives, you’ll find tips for nearly any type of fleet.

June 16, 2014

A Good Review for SuperTruck Program

Truck and engine manufacturers report significant efficiency gains as a result of the public-private “SuperTruck” program. An interim assessment of the Energy Department’s collaborative effort says that the concept vehicles are closing in on a 50% improvement in freight efficiency and a 20% improvement in engine efficiency.

June 9, 2014

Inflate your Tires, Not Your Fuel Bill

For as hard as fleets work for a 1% gain in fuel efficiency, it's hard to imagine giving up something like 2-4% in fuel efficiency to something as simple as maintaining correct inflation pressure, especially today when almost every inflation or monitoring system on the market offers payback in less than a year.

May 27, 2014

Don't Scrub Away Tire Savings

You've heard the expression, 'It's like herding cats"? It's like that with tires when your alignment is out of whack. With all those wheels heading in different directions, it's unlikely you're getting the best fuel economy -- or tire life.

May 23, 2014

Meritor Developing Fuel-Saving Drive Axle

CAMERI, ITALY -- Meritor is developing a new drive axle intended to save fuel by reducing parasitic power losses resulting from oil churn. The company shared its plans for the new fuel-efficient drive axle at a press event for North American trade journalists.

May 19, 2014

Navistar and Swift Transportation Begin Pilot Program to Improve Fuel Economy

Navistar said it developed a specification for the International ProStar tractor that the company expects to deliver improved fuel economy results.

May 16, 2014

Meritor Adds Two New Axle Ratios to Improve Fuel Efficiency

Two new axle ratios are available from Meritor, optimized to meet trucking's demand for improved fuel efficiency. Lower axle ratios promote downspeeding for optimum fuel efficiency.

May 14, 2014

Shell Engine Teardown Compares Protection of Experimental Oil

What do you get when you put a group of trucking journalists in a room with three tables of engine teardown parts and ask them to choose which one is from the truck running the experimental low-viscosity oil? A lot of eeny-meeny-miney-mo.

May 14, 2014

Shell Rotella Engine Teardown

A North Carolina fleet has been running a group of trucks on three different Shell Rotella oils -- a 15w-40, a 10w-30, and a 10w-30 that's been altered to provide a lower high-temp/high-shear number than is currently approved. A teardown of one of each after more than half a million miles shows virtually no difference in wear among the three engines. Learn more here. (By Deborah Lockridge, Editor in Chief.)

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