Fuels Containing Oxygenates
Gasoline frequently contains oxy-
genates (alcohols and ethers) espe-
cially in areas of the U.S. and Canada
which are required to sell such refor-
mulated fuels as part of a strategy to
reduce exhaust emissions.
The types and volume of fuel oxy-
genates approved for use in unleaded
gasoline by the U.S. Environmental
Protection Agency include a broad
range of alcohols and ethers, but only
two components have seen any signif-
icant level of commercial use.
Gasoline/Alcohol Blends - Gasoline
containing up to 10% ethanol (alco-
hol produced from agricultural products
such as corn), also known as "gasohol"
is approved for use.
Avoid using blends of unleaded
gasoline and methanol (wood
alcohol) whenever possible, and
never use "gasohol" contain-
ing more than 5% methanol.
Fuel system damage and perfor-
mance problems may result.
Gasoline/Ether Blends - The most
common ether is methyl tertiary butyl
ether (MTBE). You may use gasoline
containing up to 15% MTBE.
Other oxygenates approved for use
in unleaded gasoline include TAME
(up to 16.7%) and ETBE (up to
17.2%). Fuel containing these oxy-
genates can also be used in your