(June 11, 2013) SANTA MONICA, Calif. — TrueCar today announced that fuel economy numbers from May light vehicle auto sales indicate TrueMPG remain steady at 23.7 mpg, remaining at record levels for industry fuel economy. Year-over-year, average fuel economy saw a 0.6 mpg increase, led by Nissan and Chrysler, which both enjoyed better than 1.2 MPG gains in their average fuel economy numbers.

"Chrysler and Nissan are both benefiting from the success of their more fuel-efficient models such as the Dart, Rogue and Sentra," said Jesse Toprak, senior analyst for TrueCar. "Even though the market share for large trucks has been increasing in recent months, the higher fuel efficiency of the new pickups is offsetting what would have been a decrease in overall MPG figures."

Below is how the top eight manufacturers fared comparing overall MPG, broken out by car and truck MPG:

According to TrueCar.com, the TrueMPG for vehicles sold by U.S. manufacturers averaged 21.9 MPG in May 2013, up from 21.3 MPG in May 2012. European manufacturers increased their average fuel economy for vehicles sold from 23.2 MPG in 2012 to 23.4 MPG; Japanese manufacturers increased their average fuel economy from 24.6 MPG last year to 25.4 MPG; and South Korean manufacturers' average fuel economy increased from 26.9 MPG in May 2012 to 27.2 last month.