2-4
SECTION TWO
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Engines covered by this manual have been approved by Indmar
for operation on gasoline blended with 16% Biobutanol, or Bu16.
Use of Biobutanol will not void the warranty of Indmar gasoline
engines.
Indmar and the National Marine Manufacturers Association
encourage the use of Biobutanol in marine engines.
Biobutanol (either isobutanol or n-butanol) is created from
biomass and is blended with gasoline to help meet renewable
fuel mandates and clean air standards. Bu16 contains a higher
percentage (16%) of renewable fuels than traditional E10 gasoline
(10%), without sacrificing engine performance or reliability.
Bu16 can be mixed with any E10 or other approved fuel already in
the boat’s fuel tank(s).
Biobutanol is chemically different from ethanol and does not
have ethanol’s negative characteristics when blended in fuel.
The Bu16 fuel blend does not absorb water like E10; the phase
separation common in E10 fuel does not occur in Bu16. Isobutanol
is not a corrosive agent (ethanol is highly corrosive) and will not
damage fuel system parts. These characteristics, combined with
a significantly higher energy content, make Bu16 fuel ideal for
marine engines.
IN ENGINES MANUFACTURED BY INDMAR
FUELS IN OTHER COUNTRIES
If you operate your Indmar engine outside the USA or Canada,
unleaded fuels may be difficult to obtain. Leaded fuels must not
be used in engines with catalytic converters or serious damage
will occur.
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