If you’re trying to be kind to the environment and save a few bucks on gas, fuel-efficient cars are the way to go. However, your driving habits can affect how quickly your vehicle goes through fuel. There are a few old wives’ tales to debunk, too. Here’s a look at how you can get a more fuel-efficient ride in Las Vegas. Fake News: Manual Transmissions Are More Efficient Automatic transmission technology has come a long way in the last few decades. Where stick- shift vehicles may have been the clear frontrunners when it came to fuel-efficient cars, today’s winners are the carefully calibrated automatics. According to FuelEconomy.gov, the most efficient vehicles are the new automatic manual transmissions that can reduce