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IMPREZA U.S.A. (E)
7
Starting and operating
7-5
– CONTINUED–
gine in tune and your emission control system working properly, and is a
way of doing your part for cleaner air. If you continuously use a high
quality fuel with the proper detergent and other additives, you should
never need to add any fuel system cleaning agents to your fuel rank.
Many gasolines are now blended with materials called oxygenates. Use
of these fuels can also help keep the air cleaner. SUBARU approves the
use of oxygenated blend fuels, such as MTBE (Methyl Tertiary Butyl
Ether) or ethanol (ethyl or grain alcohol). The blended fuels should con-
tain no more than 15% MTBE or 10% ethanol for the proper operation of
your SUBARU.
In addition, some gasoline suppliers are now producing reformulated
gasolines, which are designed to reduce vehicle emissions. SUBARU
approves the use of reformulated gasoline.
If you are not sure what the fuel contains, you should ask your service
station operators if their gasolines contain detergents and oxygenates
and if they have been reformulated to reduce vehicle emissions.
As additional guidance, only use fuels suited for your vehicle as ex-
plained below.
D Fuel should be unleaded and have an octane rating no lower than
that specified in this manual.
D Methanol (methyl or wood alcohol) is sometimes mixed with un-
leaded gasoline. Methanol can be used in your vehicle ONLY if it
does not exceed 5% of the fuel mixture AND if it is accompanied by
sufficient quantities of the proper cosolvents and corrosion inhibitors
required to prevent damage to the fuel system. Do not use fuel con-
taining methanol EXCEPT under these conditions.
D If undesirable driveability problems are experienced and you sus-
pect they may be fuel related, try a different brand of gasoline before
seeking service at your SUBARU dealer.
D Fuel system damage or driveability problems which result from the
use of improper fuel are not covered under the SUBARU Limited War-
ranty.