FUEL AND OIL
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Fuel Requirements
Do not use premixed gas and oil in this engine. The engine
automatically receives extra oil during engine break‑in. Use a fresh
supply of the recommended gasoline during engine break‑in and
after engine break‑in.
Fuel Additives
To minimize carbon deposit buildup in the engine, it is
recommended to add Mercury or Quicksilver Quickleen Engine
Treatment additive to the engine's fuel at each tank fill throughout
the boating season. Use additive as directed on container.
Avoiding Fuel Flow Restriction
IMPORTANT: Adding components to the fuel supply system
(filters, valves, fittings, etc.) may restrict the fuel flow. This may
cause engine stalling at low speed, and/or a lean fuel condition at
high RPM that could cause engine damage.
Low Permeation Fuel Hose Requirement
Required for outboards manufactured for sale, sold, or offered for
sale in the United States.
• The Environmental Protection Agency (EPA) requires that any
outboard manufactured after January 1, 2009 must use low
permeation fuel hose for the primary fuel hose connecting the
fuel tank to the outboard.
• Low permeation hose is USCG Type B1‑15 or Type A1‑15,
defined as not exceeding 15/gm²/24 h with CE 10 fuel at 23 °C
as specified in SAE J 1527 ‑ marine fuel hose.
Oil Recommendation
Recommended Oil
Mercury OptiMax/DFI or Quicksilver DFI 2-Cycle
Engine Oil
Mercury OptiMax/DFI or Quicksilver DFI 2‑Cycle Engine Oil is
recommended for your engine. If Mercury OptiMax/DFI or
Quicksilver DFI 2‑Cycle Engine Oil is not available, we recommend
using Mercury or Quicksilver TC‑W3 Premium Plus 2‑Cycle Oil.
Severe engine damage may result from use of an inferior oil.
