october2021 - 32

The Transtex skirts are made of Nylon 66, so
they will flex and return to their original shape
upon less extreme impact.
Bear noted that trailer boat tails can create
" headaches " for maintenance personnel. MVT
factory installs Michelin's Energy Guard aerodynamic
solution because it provides fuel efficiency
(10 gallons per 1,000 miles) while resisting
damage. " There's nothing hanging off the back
of a trailer with the Michelin kit, so there's just
much less opportunity for damage, " Bear said.
" And then there's no driver interaction and then
just no moving parts. "
Because of their skirt ruggedness, Myers said
Gulf Relay is also going to adopt the Michelin solution
on its next order of trailers. " They're almost
collapsible brackets that will pop back into place,
so we're going to give them a shot-they might put
those headaches to rest. "
The numbers add up
A fleet, however, doesn't need to look for homeruns
with every spec. Bear said getting a fleet to achieve
a 0.3 or 0.4% increase in fuel efficiency could be
huge win: " When you do 150 million miles a year,
it adds up pretty quick. " MVT's logistics fleet has
1,500 trucks-if they all traveled 100,000 miles
a year, they would reach that exorbitant number.
At the time of writing this, the U.S. national
average diesel price was $3.30, so a 0.3% increase
represents about a penny a gallon. Factoring for
» Mesilla Valley Transportation found that
switching from wide-base to dual tires proved
a better mix of efficiency and reliability.
Photo courtesy of MVTS
a 7-mpg fleet average, that equals $707,142 in
savings over 150 million miles.
When spec'ing powertrains, along with weighing
performance and efficiency benefits, a fleet
must also decide what type of engine oil to use.
Switching from a 15W-40 to a 10W-30 grade will
likely yield better fuel efficiency. " The thinner the
oil, the easier it is to flow, the less input energy it
takes for parts to move against each other, " said
Karin Haumann, OEM technical manager with
Shell Global Solutions. " The increased fuel economy
comes from that. "
A fleet called Boaty's Transport said it got 2%
better fuel efficiency with Chevron Delo 400
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october2021

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