Subaru Legacy Quiz
Starting and operating

MMT

In this manual: Starting and operating
About vehicle — 35Seat, seatbelt and SRS airbags — 72Keys and doors — 60Instruments and controls — 106Climate control — 43Audio — 92Interior equipment — 38Starting and operating — 85Driving tips — 47In case of emergency — 20Appearance care — 16Maintenance and service — 105Specifications — 16Consumer information and Reporting safety defects — 23
~1min read

Some gasoline contains an octane-enhancing additive called MMT (Methylcyclopentadienyl Manganese Tricarbonyl). If you use such fuels, your emission control system performance may deteriorate and the CHECK ENGINE warning light/malfunction indicator lamp may turn on. If this happens, return to your authorized SUBARU Dealer for service. If it is determined that the condition is caused by the type of fuel used, repairs may not be covered by your warranty.

Test yourself

A quick Subaru Legacy quiz: every answer comes with an explanation and a link to the manual page.