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SAN FRANCISCO, CA - OCTOBER 24:  A United Parcel Service logo is displayed on a delivery truck on October 24, 2014 in San Francisco, California. United Parcel Service reported quarterly earnings that beat analyst estimates with revenue of $14.29 billion compared to $13.52 billion one year ago.  (Photo by Justin Sullivan/Getty Images)
SAN FRANCISCO, CA - OCTOBER 24:  A United Parcel Service logo is displayed on a delivery truck on October 24, 2014 in San Francisco, California. United Parcel Service reported quarterly earnings that beat analyst estimates with revenue of $14.29 billion compared to $13.52 billion one year ago.  (Photo by Justin Sullivan/Getty Images)

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    Why UPS trucks (almost) never turn left

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Why UPS trucks (almost) never turn left

Left-hand turns are dangerous and wasteful, data shows. By avoiding them whenever possible, UPS saves 10 million gallons of fuel each year.

Why UPS trucks (almost) never turn left

Left-hand turns are dangerous and wasteful, data shows. By avoiding them whenever possible, UPS saves 10 million gallons of fuel each year.