US Only
Fuel with 15% ethanol (E15) is now available in the
United States. Fuel pumps using E15 fuel will be
marked with the label shown at left.
Federal law prohibits the use of E15 fuel in boats.
Fuel System Care
Ethanol has several characteristics that can create
problems in marine fuel systems. It acts as a solvent
and it attracts and holds water in a much higher
percentage than non-ethanol fuels. Users of ethanol-
blended fuels must take additional care in the
maintenance of their fuel systems. Ethanol blended
fuels should not cause engine problems if the fuel and
fuel system are properly maintained accorded to the
instructions given in this manual.See Maintenance;
Fuel System, and Storage.
NOTICE! Fuel system or engine damage caused by
water, foreign particles, sludge, or gums created by
improperly handled ethanol fuel is not covered by
warranty
Biobutanol-Blended Gasoline
Engines covered by this manual have been approved
by Volvo Penta for operation on gasoline blended with
16% Biobutanol, or Bu16.
Use of Biobutanol will not void the warranty of Volvo
Penta gasoline engines.
Volvo Penta and the National Marine Manufacturers
Association encourage the use of Biobutanol in marine
engines.
Biobutinol (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,
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Technical Data
110 47712779 09-2020 © AB VOLVO PENTA
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