At the 2008 Le Mans 24 Hours on 14/15 June, the three Audi R10 TDI prototypes entered by Audi Sport Team Joest will race for the first time with the next generation of Biofuel manufactured from Biowaste and promising a reduction in the emission of CO₂ by almost 90 per cent when compared with traditional diesel. Britain's Allan McNish will race an Audi bidding for glory in a race he won 10 years ago.
 
Audi fields the 650-hp plus R10 TDI, which has already won the famous 24 Hours of Le Mans twice, in sportscar races since 2006. Shell V-Power Diesel race fuel produced by development partner Shell has been used since the very beginning. It’s a particularly powerful and efficient synthetic fuel which is created from Natural Gas in a process called Gas To Liquids (GTL). Fuels with these components are already available at the pumps.
 
For the third appearance of the Audi R10 TDI at Le Mans, a small amount of Biofuel of the next generation is mixed for the first time with the previously well-proven GTL components: BTL (Biomass To Liquids), as it is officially called, is extracted from Biowaste that is unfit for use in foodstuffs, for example from waste wood. BTL promises a reduction in the amount of CO₂ emission by almost 90 per cent compared to traditional diesel.
 
Although they are manufactured from different raw materials, the two alternative fuels BTL and GTL are practically Sulphur free and odourless. They combine quality and efficient combustion with reduced exhaust emissions.
 
The V12 TDI known for its efficiency and fitted to the Audi R10 TDI has already been tested successfully with the new fuel on the dynamometer and during tests. The first public appearance follows this coming Sunday (1 June) at the official test day at Le Mans. It traditionally provides teams with the only opportunity to test on the 13.629-kilometre circuit of Le Mans before the race.