2009 Toyota Prius Owners Manual - Page 496

OM47614U_PRIUS_U.book Page 471 Monday, January 11, 2010 11:02 AM 6-1. Specifications n Toyota recommends the use of cleaner burning gasoline Cleaner burning gasoline, including reformulated gasoline that contains oxygenates such as ethanol or MTBE (Methyl Tertiary Butyl Ether) is available in many areas. Toyota recommends the use of cleaner burning gasoline and appropriately blended reformulated gasoline. These types of gasoline provide excellent vehicle performance, reduce vehicle emissions and improve air quality. n Toyota does not recommend blended gasoline l Toyota allows the use of oxygenate blended gasoline where the oxygenate content is up to 10% ethanol or 15% MTBE. l If you use gasohol in your Toyota, be sure that it has an octane rating no lower than 87. l Toyota DOES NOT recommend the use of gasoline containing methanol. n Toyota does not recommend gasoline containing MMT Some gasoline contains octane enhancing additive called MMT (Methylcy clopentadienyl Manganese Tricarbonyl). Toyota DOES NOT recommend the use of gasoline that contains MMT. If fuel containing MMT is used, your emission control system may be adversely affected. The malfunction indicator lamp on the instrument cluster may come on. If this happens, contact your Toyota dealer for service. 6 Vehicle specifications 471 PRIUS_U_(OM47614U)