On Friday, Jeff Gordon’s Hendrick Motorsports team found lower-octane fuel in its fuel cans during the first practice session at Infineon Raceway.
NASCAR is aiming to switch to E15 fuel, a mix of 85% gasoline and 15% ethanol, by the 2011 Sprint Cup season. Hendrick Motorsports is currently testing E15. Roush Yates Engines is preparing to start development soon. There are reports that E15 could be used as early as this season, but not during the Chase. [...]