With just one drivetrain on its plate, the 2011 Acura MDX ranks among the least fuel-efficient luxury crossovers.
The Environmental Protection Agency (EPA) rates the MDX at 16/21 mpg. Vehicles like the Lincoln MKT manage 17/22 mpg, and for truly impressive fuel economy, there's always the Toyota Highlander Hybrid, at 28/28 mpg.
The MDX also requires premium fuel.
Acura hasn't announced any plans for more efficient technology for the MDX.