Jump to content

Cummins makes case for newer trucks, bigger engines


kscarbel2
 Share

Recommended Posts

Truck News / March 26, 2014

A new truck purchased today with the Cummins ISX15 engine rated between 400-450 hp will be 7% more fuel-efficient than the same truck ordered four years ago.

That was the message from Jeff Jones, vice-president, North American engine business for Cummins, when he spoke to trucking journalists prior to the Mid-America Trucking Show.

“If you’ve got a four-year-old truck and you’re contemplating trading it in, the new truck you’re putting into service will be at least 7% more fuel-efficient,” Jones said. “That is a big deal.”

The savings have come in the form of: reduced parasitic horsepower losses; improved combustion efficiencies; SCR optimization; and naturally aspirated air compressors, among other advancements.

Jones cited industry studies that estimate the cost of running a Class 8 truck in the US grossing 80,000 lbs is about $1.65 per mile. Fuel costs about 60 cents per mile, making it the biggest single expense.

“A 7% improvement on what’s more than a third of the operating cost of a vehicle goes straight to the bottom line,” Jones said, adding it could save a fleet about $4,000 per truck each year.

“If you think about fleets that operate hundreds or thousands of trucks, the math is pretty easy to justify in terms of the ROI on a new truck,” he added.

Jones said customers are beginning to realize this, which is one reason order volumes are picking up across the North American Class 8 truck market.

“They know there’ll be a good ROI on new equipment relative to three-, four- and five-year-old trucks being traded in right now,” Jones said.

Cummins officials also made the case for 15L power, which bucks an industry trend towards 13L engines.

“There’s a tangible advantage to 15-litre big bore power,” Jones said, noting the ISX15 leads the industry in terms of market share and volume.

But how can a 15L be more fuel-efficient than a smaller displacement 13L engine? Jones said it’s because: the additional power gives engineers more flexibility when it comes to optimizing performance at low rpms; big bore engines offer higher compression ratios; and because the turbocharging mechanism is simpler in higher displacement engines. The engines are now able to cruise at 1,100-1,300 rpm - unprecedented with 15L power - and when combined with an optimized automated transmission, can equalize fuel efficiency performance across a fleet, Jones said.

He said today’s ISX15 can deliver as much as a 0.5 mpg improvement over the same engine offered four years ago. Combined with the Eaton UltraShift transmission via the SmartAdvantage powertrain, another 3-6% fuel savings can be achieved, Jones added.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...