FORT WORTH, TX -APRIL 4: Buster Auton, director of Transportation for NASCAR, introduces Mobil Delvac 1 LE 5W-30 to the NASCAR hauler fleet as part of the sportÕs RACE TO GREEN sustainability ... more 
FORT WORTH, TX -APRIL 4: Buster Auton, director of Transportation for NASCAR, introduces Mobil Delvac 1 LE 5W-30 to the NASCAR hauler fleet as part of the sportÕs RACE TO GREEN sustainability initiative. Showcasing the breadth of ExxonMobil engine lubricants, the company will transition every NASCAR-owned fleet-and-service vehicle to motor oils with fuel savings potential -- either Mobil 1 Advanced Fuel Economy or Mobil Delvac 1 LE 5W-30. The event took place at Texas Motor Speedway on April 4, 2014 in Ft. Worth, Texas. (Photo by Rick Yeatts/Getty Images for ExxonMobil) less 
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Getty Images | Photo By Rick Yeatts / Getty Images for ExxonMobil
Fri, Apr 4, 2014 5:51 PM EDT