Motor Vehicle Fuel Efficiency Act

[AI summary unavailable — showing source text] Motor Vehicle Fuel Efficiency Act - Amends the Motor Vehicle Information and Cost Savings Act to establish average fuel economy standards for passenger automobiles and automobiles other than passenger automobiles (light trucks) (for model years 1996 and thereafter). Authorizes the Secretary of Transportation (Secretary), to modify such standards for model year 1996 and thereafter. Directs the Secretary, in response to petitions filed at least 12 months in advance of the model year, to conduct a rulemaking proceeding to determine whether to increase or decrease such standard to a level that is the maximum feasible average fuel economy for that model year, except that such standard shall not be reduced below a level equal to the average fuel economy achieved by the manufacturer of such vehicle for model year 1988, as multiplied by a specified percentage. Requires the Administrator of the Environmental Protection Agency to report annually to specified congressional committees on a study which: (1) examines the accuracy of fuel economy testing of passenger automobiles and light trucks; and (2) assesses the extent to which fuel economy deteriorates during the lifetime of such vehicles. …