Rural Fuel for School Act of 2008 - Directs the Secretary of Education to award triennial grants to rural local educational agencies (LEAs) in amounts equal to between 10% to 50% of each grantee's annual total transportation costs for the previous fiscal year.
Makes rural LEAs eligible for such grants if they experience: (1) an increase in annual fuel costs of at least 20% for the fiscal year; (2) an increase in contract transportation costs of at least 20% for the fiscal year; or (3) extreme hardship, as certified by the Secretary, in providing transportation to elementary and secondary students due to increased fuel prices.
Terminates the Secretary's authority to make such grants on December 31, 2013.