H.R.2505: To amend the Internal Revenue Code of 1986 to increase and extend the vehicle refueling property credit, and for other purposes.

Promoting the Use of Mixed Petroleum Act or the E-85 PUMP Act - Amends the Internal Revenue Code to: (1) increase the rate of the tax credit for alternative fuel vehicle refueling property from 30 to 50%; (2) increase the limit on such credit for commercial properties to $50,000; and (3) extend such credit through 2014.

Amends the Clayton Antitrust Act to make it an unlawful restriction of trade to prohibit a service station franchisee from installing alternative fuel vehicle refueling property.