Need a ride to the airport, but don’t want to harm the environment with all those harmful gasoline fumes? Well now you can “go green” with a Philadelphia shuttle service that is as economic to the earth as it is to your wallet. Yup, you read that correctly. Many shuttle and limousine services are now going green by incorporating more fuel-efficient and eco-friendly vehicles into their fleets of automobiles. Some shuttle services are using what is known as E85. A relatively new fuel, E85, which stands for ethanol, 85% mixture, burns much cleaner and smoother than traditional petroleum-based gasoline...