Subaru Impreza WRX (2011)
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Refueling in cold weather
To help prevent moisture from forming in the fuel system and the risk of its freezing, use of an antifreeze additive in the fuel tank is recommended during cold weather.
Use only additives that are s ...
2.0-L DOHC engines on the 2.0X and 2.0XS
Fuel economy has been improved with the redesigned DOHC cylinder head, as
well as through optimization of the compression ratio and reduction of the
volume of the combustion chamber.
Low-end and ...
MMT
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 C ...
