Octane Rating Act

[AI summary unavailable — showing source text] Octane Rating Act - Directs the Secretary of the Interior to conduct tests of a representative sample of motor vehicles for the purposes of determining the lowest average octane rating of gasoline which can be used without knocking in each motor vehicle sold in the United States, beginning with motor vehicles manufactured for the 1965 model year and ending with motor vehicles manufactured for the 1975 model year, and to publish such findings in the Federal Register not later than December 31, 1974. States that beginning with motor vehicles manufactured for the 1976 model year, no new motor vehicle shall be sold or offered for sale in the United States unless the manufacturer has: (1) tested a motor vechicle which is in all respects substantially the same construction as such new vehicle; (2) submitted the results of such tests to the Secretary for publication in the Federal Register; and (3) published in the owners' manual of such new vehicle the lowest average octane rating of gasoline which can be used without knocking in such vehicle based upon such tests. Requires every major refiner to produce and market to the general public, in amounts determined by the Secretary, a gasoline…