Sustainable fuel, lower emissions: Audi approves many of its V6 diesel engines for use with renewable fuel | Audi MediaCenter
Green Racing at Petit Le Mans: Audi and Shell – Advanced BioFuels USA
TDFrying Oil: Audi Makes Its V6 TDI Engines Compatible With Vegetable Oil-Based Fuel | Carscoops
Audi Delivering Cars Filled With Eco-Friendly Gasoline And Diesel Fuel
Audi tells Obama 'think biodiesel' | BiodieselMagazine.com
Biodiesel vs. Diesel: Everything You Need to Know
Green Audi TT Coupe with BioDiesel Conversion | Audi tt, Audi, Coupe
New & Used Cars lot | Cars Biodiesel for sale | Automart USA
Audi A4 and A5 now available to order as g-tron in Europe; Audi e-gas for 3 years as standard - Green Car Congress
Audi R8 Biodiesel (runs on vegetable oil) Nice toy not too flashy | Audi cars, Audi r8 v12, Audi
Audi Has Made Diesel From Water And Carbon Dioxide | IFLScience
Biodiesel fuel – a brief history and some notable facts | CLASSIC CARS TODAY ONLINE
Eureka! Audi A3 TDI Spotlights Bright Future for Diesel and Biodiesel Technology in 1,000-Mile Green Car of the Year Tour
Green Audi TT Coupe with BioDiesel Conversion
Sustainable fuel, lower emissions: Audi approves many of its V6 diesel engines for use with renewable fuel | Audi MediaCenter
Audi Produces e-Diesel Fuel From Water, CO2, Renewable Energy
What You Need To Know About Biodiesel | Edmunds
Audi just created diesel fuel from air and water
Audi six-cylinder diesel engines approved for renewable fuel
Audi Delivering Cars Filled With Eco-Friendly Gasoline And Diesel Fuel
