Consumers Have Limited Assurance That Octane Ratings Are Accurate

T-RCED-90-90: Published: Jun 20, 1990. Publicly Released: Jun 20, 1990.

Additional Materials:


Office of Public Affairs
(202) 512-4800

GAO discussed the results of a nationwide review on gasoline octane labelling, focusing on consumer concern that gasoline will meet vehicle octane requirements. GAO noted that: (1) newer gasoline-alcohol blended fuels or future fuels that may become available to abate vehicle pollution are subject to the Petroleum Marketing Practices Act's octane posting requirements; (2) octane mislabelling is occurring and is costly to consumers, but the nationwide extent of mislabeling is unknown; (3) testing fuel to ensure that posted ratings are accurate is an effective deterrent to mislabelling; and (4) the act's provisions may limit state enforcement efforts. GAO believes that there are options for including the states in the program in a way likely to result in greater assurance that the act's objectives are achieved.

Sep 27, 2018

Sep 24, 2018

Aug 23, 2018

Jun 5, 2018

May 14, 2018

Jan 31, 2018

Jan 4, 2018

Dec 19, 2017

Oct 25, 2017

Sep 25, 2017

Looking for more? Browse all our products here