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Oxygenated Fuels
Technical Information
If you use an oxygenated fuel, be sure it is
unleaded and meets the minimum octane
rating requirement.
Before using an oxygenated fuel, try to
confirm the fuel’s contents. Some states/
provinces require this information to be
posted on the pump.
The following are the EPA-approved
percentages of oxygenates:
ETHANOL (ethyl or grain alcohol) 10%
by Volume
You may use gasoline containing up to
10% ethanol by volume. Gasoline
containing ethanol may be marketed
under the name ‘‘Gasohol’’.
MTBE (Methyl Tertiary Butyl Ether) 15%
by Volume
You may use gasoline containing up to
15% MTBE by volume.
Some conventional gasolines are being
blended with alcohol or an ether
compound. These gasolines are
collectively referred to as oxygenated
fuels. To meet clean air standards, some
areas of the United States use oxygenated
fuels to help reduce emissions.
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