Fuel Requirements - Mercury 200 OptiMax Jet Drive Service Manual

• Mercury and Mariner engines that are supplied with a fuel hose, regardless of production date, will have the correct fuel hose
to meet EPA regulations.
Low Permeation Fuel Hose from Mercury Marine
The light gray fuel hose that is typically used to connect between the outboard and fuel supply in the boat, will now be available
in low permeation. This includes the fuel hoses shipped with engines manufactured on or after January 1, 2009.
The new hose will remain light gray in color. Other changes to the new fuel hose include:
• An inner liner resistant to chemicals and alcohol fuels.
• An outside PVC jacket with increased UV resistance to prevent browning of the exterior surface.
The new low permeation fuel hose from Mercury Marine will have a different compound number printed on the hose. The red print
on the older non‑low permeation hose will change to the blue print on the new low permeation hose.
a
MERCURY MARINE–C–530–D11–CE–YYYY–AAA 8469–B1–USCG TYPE B1–SAE J1527–
c
5/16" MERCURY MARINE–C–677–D11–CE–YYYY–AAA–USCG–TYPE B1–15–SAE J1527–B1–15–EPA–COMPLIANT
b
a - Non‑low permeation hose
b - Low permeation hose
c - Hose inside diameter (I.D.)
d - Compound number or type
e - Year of manufacture
f - Supplier identification
NOTE: The non‑low permeation bulk hose rolls and kits will NOT directly supersede to the low permeation hose.
Reference Service Bulletin 2008-11.

Fuel Requirements

IMPORTANT: Use of improper gasoline can damage the engine. Engine damage resulting from the use of improper
gasoline is considered misuse of the engine, and damage caused will not be covered under the limited warranty.
Fuel Ratings
Mercury engines will operate satisfactorily when using a major brand of unleaded gasoline meeting the following specifications:
USA and Canada—having a posted pump Octane Rating of 87 (R+M)/2 minimum. Premium gasoline [92 (R+M)/2 Octane] is also
acceptable. Do not use leaded gasoline.
Outside USA and Canada—having a posted pump Octane Rating of 90 RON minimum. Premium gasoline (98 RON) is also
acceptable. If unleaded gasoline is not available, use a major brand of leaded gasoline.
Using Reformulated (Oxygenated) Gasolines (USA Only)
This type of gasoline is required in certain areas of the USA. The two types of oxygenates used in these fuels is alcohol (Ethanol)
or ether (MTBE or ETBE). If ethanol is the oxygenate that is used in the gasoline in your area, refer to Gasolines Containing
Alcohol.
These reformulated gasolines are acceptable for use in your Mercury engine.
Gasolines Containing Alcohol
If the gasoline in your area contains either methanol (methyl alcohol) or ethanol (ethyl alcohol), you should be aware of certain
adverse effects that can occur. These adverse effects are more severe with methanol. Increasing the percentage of alcohol in the
fuel can also worsen these adverse effects.
90-8M0050731 MAY 2011
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