What are the key benefits to using
SYN3? |
SYN3 Lubricant:
- Can be used in the engine, primary chaincase, and transmission.
- Offers improved film strength for superior wear protection at
high temperature, and improved deposit control for a cleaner engine,
transmission, and primary chaincase.
- Is formulated for reduced oil consumption, improved wear protection,
high temperature detergency, and superior overall field performance.
- Provides high temperature film strength, which means the lubricant
maintains film thickness in high power output and high engine
speed conditions, keeping the metal parts from rubbing against
each other and resulting in less wear.
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In the past, Harley-Davidson® did
not recommend the use of synthetic oils in H-D/Buell® motorcycles.
Why is H-D introducing a synthetic now? |
Because Harley-Davidson cannot test and
certify all available synthetics on the market nor control their oil
and additive formulations, we have discouraged their use. However,
Harley-Davidson, in close partnership with our suppliers, analyzed
available petrochemical technology and developed a custom-blended
candidate fluid that can be used in all three cavities of a Harley-Davidson/Buell
motorcycle. This product has been exclusively designed for Harley-Davidson
and is the only synthetic product TESTED and CERTIFIED by Harley-Davidson
engineering for use in H-D/Buell motorcycles. |
What kind of testing was done on SYN3? |
Over three years of laboratory bench testing,
dynamometer testing under accelerated conditions, open road vehicle
durability testing, closed course durability testing, and wear and
deposit rating analysis was conducted on SYN3. |
Who makes or blends this product? |
SYN3 is a proprietary blend, exclusively
custom-blended for Harley-Davidson. |
Will H-D 360 Motorcycle Oil be replaced
by SYN3? |
Harley-Davidson continues to offer H-D
360 Motorcycle Oil. SYN3 is an alternative lubricant product from
Harley-Davidson, and in particular, a formula that is very effective
for high performance engines and hot climate applications. |
In which motorcycle models can SYN3
be used? |
SYN3 is formulated for use in Harley-Davidson
Evolution® XL, Evolution 1340, Twin Cam® (all displacements)
and Revolution-equipped models and all Buell® models. |
Can SYN3 be used in ShovelheadTM
engines, 4-speed Big Twin transmissions, and early Shovelhead 5-speed
transmissions? |
Harley-Davidson did not test SYN3 in these
engine configurations. There are a multitude of tests that must be
completed before a lubricant can be certified for use in Harley-Davidson
engines, primary chaincases and transmissions. Many of these tests
require that the components be brand new, and the required quantity
of new powertrains for testing and validation could not be procured. |
Will the use of SYN3 lengthen my service
intervals? |
No, we recommend that you still follow
your owner's manual for the proper service schedule for your vehicle. |
If this product is a high performance
lubricant, why would my service intervals not be extended? |
While SYN3 will
help reduce the amount of impurities to your engine, no lubricant
product can reduce fuel dilution (this happens every time you start
your vehicle). As a result, the regular service schedule is recommended
for optimum performance of your vehicle.
Lubricants begin to break down the moment the engine is started.
The long molecular strands of the lubricant begin to be sheared
between the faces of gears, pistons or other moving parts. SYN3
was tested to confirm that the lubricant provides the protection
required for the engine, primary chaincase and transmission for
the drain intervals specified in the Owner's Manual.
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A common concern with other available
synthetic oils is that roller bearings may "skate" or "float" in the
bearing race, and not actually rotate as designed. How does SYN3 prevent
this from happening? |
SYN3 was formulated
to provide improved high temperature stability, shear stability, proper
lubricity for anti-wear (without roller bearing "skate" or "float")
and maintain the coefficient of friction for proper clutch operation
(without clutch slippage).
Harley-Davidson does not recommend any lubricants that have not
been tested and approved by Harley-Davidson engineering because
we do not control the formulations. Lubricants are reformulated
frequently to meet changing American Petroleum Institute (API) Ratings.
API Ratings are developed and tested for use in water-cooled automotive
engines and diesel applications. There is no API Rating (classification)
for Motorcycle Engines.
Harley-Davidson, in close partnership with our suppliers, analyzed
available petrochemical technology and developed a custom-blended
candidate fluid that could be used in all three cavities of a Harley-Davidson/Buell
motorcycle.
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Can a brand new bike have its fluids
drained and refilled with SYN3, without voiding the warranty?
|
Yes, this product can be used as a first
fill upon delivery of a new motorcycle. The formula is approved by
Harley-Davidson for use in all stages of engine life and is not detrimental
to the engine break-in cycle. |
Do the cavities that are going to be
filled with SYN3 need to be completely drained? |
Yes, the cavities that are to be filled
with SYN3 must be completely drained. It is not recommended to mix
SYN3 with other lubricant products. During servicing, a residual amount
of fluid will remain in the sumps. It is not required to "flush"
out the residual fluids. |
Should I put a can of additive in with
each oil change? |
No, SYN3 is blended with an additive package
already included. Other additives are not needed and may not be compatible
with SYN3. In fact, oil additives may actually dilute the SYN3 formulation.
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If I'm on the road, and realize I'm
down a quart of engine oil, and cannot buy SYN3, what should I use? |
If SYN3 is not available and addition of
motor oil is required, the first choice would be to add H-D 360 SAE
20W50 to the SYN3 for engine lubrication. Although H-D 360 is compatible
with SYN3, we suggest the mixture of the fluids be changed as soon
as possible. If H-D 360 is not available, the second choice would
be to add an acceptable diesel engine oil as listed in the Owner's
Manual, and again we suggest the mixture of the fluids be changed
as soon as possible. DO NOT add diesel engine oil to the primary chaincase
or transmission. |
Can a quart of oil be added to the
Primary Chaincase or Transmission when SYN3 is not available? |
If SYN3 is not available and addition of
lubricant to the Primary Chaincase (Evolution 1340 and Twin Cam 88)
is required, the first choice would be to add H-D Primary Chaincase
Lubricant. Although H-D Primary Chaincase Lubricant is compatible
with SYN3, we suggest the mixture of the fluids be changed as soon
as possible.
If SYN3 is not available and addition of lubricant to the Primary
Chaincase and Transmission (common reservoir) for Evolution XL and
all Buell models is required, the first choice would be to add H-D
Sport-Trans Fluid. Although H-D Sport-Trans Fluid is compatible
with SYN3, we suggest the mixture of the fluids be changed as soon
as possible.
If SYN3 is not available and addition of lubricant to the Transmission
(Evolution 1340 andTwin Cam 88) is required, DO NOT ADD H-D Semi-Synthetic
Transmission Lubricant as the two lubricants are NOT compatible.
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