2.4 Fuel And Oil
Fragment manuala — str. 35–36
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FUEL AND OIL 2.4
FUEL • REFORMULATED OR OXYGENATED GASOLINES (RFG)
describes gasoline blends that are specifically designed to
Always use a good quality unleaded gasoline. Octane ratings burn cleaner than other types of gasoline. This results in
are usually found on the pump. Refer to Table 2-2. fewer tailpipe emissions. They are also formulated to
evaporate less when filling the tank. Reformulated gasolines
A WARNING use additives to oxygenate the gas. Your motorcycle will
run normally using this type of fuel. Harley-Davidson
Avoid spills. Slowly open fuel filler cap. Do not fill above recommends using it whenever possible as an aid to cleaner
bottom of filler neck insert, leaving air space for fuel air in our environment.
expansion. Secure filler cap after refueling. Gasoline is
• Do not use racing fuel or fuel containing methanol. Use of
extremely flammable and highly explosive, which could
result in death or serious injury. (00028b) these fuels will damage the fuel system.
• Using fuel additives other than those approved for use by
A WARNING Harley-Davidson may damage the engine, fuel system and
Use care when refueling. Pressurized air in fuel tank can other components.
force gasoline to escape through filler tube. Gasoline is Some gasoline blends might adversely affect starting,
extremely flammable and highly explosive, which could performance or fuel efficiency. If any of these problems are
result in death or serious injury. (00029a) experienced, try a different brand of gasoline or gasoline with
a higher octane blend.
Modern service station pumps dispense a high flow of gasoline
into a motorcycle fuel tank. This can cause air entrapment and ENGINE LUBRICATION
pressurization.
Table 2-2. Octane Rating Engine Lubrication
SPECIFICATION RATING A CAUTION
P ump Octane (R+M)/2 91 (95 RON)
Prolonged or repeated contact with used motor oil may
be harmful to skin and could cause skin cancer. Promptly
GASOLINE BLENDS
wash affected areas with soap and water. (00358b)
Harley-Davidson motorcycles are designed to get the best A CAUTION
performance and efficiency using unleaded gasoline. Most
gasoline is blended with alcohol and/or ether to create If engine oil is swallowed, do not induce vomiting. Contact
oxygenated blends. The type and amount of alcohol or ether a physician immediately. In case of contact with eyes,
added to the fuel is important. immediately flush with water. Contact a physician if
irritation persists. (00357d)
NOTICE
NOTICE
Do not use gasoline that contains methanol. Doing so can
result in fuel system component failure, engine damage Do not switch lubricant brands indiscriminately because
and/or equipment malfunction. (00148a) some lubricants interact chemically when mixed. Use of
inferior lubricants can damage the engine. (00184a)
• Gasoline/METHYL TERTIARY BUTYL ETHER (MT BE)
blends are a mixture of gasoline and as much as 15 percent Always use the proper grade of oil for the lowest temperature
MTBE. Gasoline/MTBE blends use in your motorcycle is expected before the next scheduled oil change. Refer to Table
approved. 2-3.
• ETHANOL fuel is a mixture of ethanol (grain alcohol) and This motorcycle was originally equipped with GENUINE
unleaded gasoline and can have an impact on fuel mileage. HARL EY-DAVIDSON SYN-BLEND MOT ORCYCLE OIL
Fuels with an ethanol content of up to 10 percent may be 15W50. SYN-BLEND is the preferred oil under normal operating
used in your motorcycle without affecting vehicle conditions. If operation under extreme cold or heat are
performance. U.S. EPA regulations currently indicate that expected, refer to Table 2-3 for alternative choices.
fuels with 15 percent ethanol (E15) are restricted from use
in motorcycles at the time of this publication. Some If necessary and SYN-BLEND, SYN3,or HD 360 is not
motorcycles are calibrated to operate with higher ethanol available, add oil certified for diesel engines. Acceptable
concentrations to meet the fuel standards in certain designations include: CH-4, Cl-4 and CJ-4. T he preferred
countries. viscosities, in descending order are: 20W50, 15W40 and
10W40.
At the first opportunity, see an authorized dealer to change
back to 100 percent Harley-Davidson oil.
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Table 2-3. Recommended Engine Oils
T YPE VISCOSITY LOWEST AMBIENT COLD-WEATHER
TEMPERATURE STARTS BELOW
50 °F (10 °C)
Harley-Davidson Genuine SYN-BLEND Motor- SAE 15W50 Above 30.2 °F (-1 °C) Excellent
cycle Lubricant
Screamin' Eagle SYN3 Full Synthetic Motor- SAE 20W50 Above 30.2 °F (-1 °C) Excellent
cycle Lubricant
Genuine Harley-Davidson H-D 360 Motorcycle SAE 20W50 Above 39.2 °F (4 °C) Good
Oil
Low Temperature Lubrication form on the cool surfaces inside the engine. In freezing
weather, this water becomes slush or ice. If the engine is not
Change engine oil often in colder climates. If motorcycle is warmed to operating temperature, accumulated slush or ice
frequently ridden less than 15 mi (24 km), in ambient blocks the oil lines and causes engine damage. Over time,
temperatures below 60.8 °F (16 °C), reduce oil change intervals water will accumulate, mix with the engine oil and form a sludge
to 1,491½ mi (2,400 km). that is harmful to the engine.
NOTE If the engine is allowed to warm to normal operating
Lower ambient temperatures require more frequent oil changes. temperature, most of the water evaporates and exits through
the crankcase breather.
Water vapor is a normal by-product of combustion. During
cold-weather operation, some water vapor condenses to liquid
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