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Quart Screamin' Eagle SYN3 Full Synthetic Motorcycle Lubricant- SAE 20W50

Part Number 62600005

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TESTED-CERTIFIED for use in Harley-Davidson® engine, primary chaincase and transmission applications, Screamin' Eagle® SYN3® Full Synthetic Lubricant makes changing and topping-off fluids a simple one-product process.

  • Only synthetic lubricant custom-blended, tested and certified for use in Harley-Davidson® engine, chaincase and transmission applications
  • SYN3® Lubricant is formulated to maintain the coefficient of friction for proper clutch operation and to provide the proper lubrication to the primary chain drive
  • Designed to provide the correct lubricity for the anti-wear requirements of transmission gears and for improved seal protection
  • Approved by Harley-Davidson® for use in all stages of engine life and is not detrimental to the break-in stage of engines
  • Updated technology allows the oil to stay fresher longer by maintaining fluid film thickness and low-temperature pumpability for improved wear protection over the oils life
  • Only high-performance oil that can be used in all three cavities of a Harley-Davidson® motorcycle, SYN3® lubricant offers improved wear protection, high temperature detergency and superior overall field performance
  • Our engineers have tested powertrains under controlled environments to make sure every additive is the correct additive and the right amount. The end result is the best oil you can buy for your Harley-Davidson® powertrain
  • SYN3® lubricant can only be purchased at your local dealer.
    For more information see SYN3® Premium Level of Protection.
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Formulated for use in Harley-Davidson® Engines, Transmissions and the following Primary Chaincase applications: '71-later XL, '83-'84 XR1000, '08-'13 XR, and '84-later FX, FXR, Dyna®, Softail®, Touring, and Trike models with wet type diaphragm spring clutch.

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  • Volume
    1.0 Quart, US liquid
  • Sold in Unit
    Each
  • In The Box
    1 bottle
Rated 4.2 out of 5 by 17 reviewers.
Rated 5 out of 5 by Great stuff using this oil in my bike so far great stuff. No issues. 2016 SGS November 7, 2016
Rated 1 out of 5 by dont waste your money this is the worst synthetic oil you can buy on the market. Im an ASE master mechanic and a Harley certified tech and the wear ive seen on the cylinder walls, pistons, and pour point falls short of every other synthetic oil out there. save your money and go buy some mobil 1 and you and your bike will be 100 times happier. Every siezed motor (5) ive seen has either been running syn 3 or amsoil. dont buy into the gimmicks or the "independent" lab studies that were financed by the oil manufacturer conducting the study. theyre all biased. the things that will make your bike last forever (i currently have a 120,000 bike run this way), Mobil 1 V-Twin 20W50 in the engine, Royal Purple 75W140 in the tranny, and Mobil 1 10W40 in the primary. Ive done a lot of self studies on these and the filters are super high quality (they use them in NASCAR, use the HD model filters), and every motor i tear apart running M1 looks brand new and have never seen a single sign of sludge or buildup and all the plastics (IE cam tensionors and breathers) all look brand new. November 7, 2016
Rated 5 out of 5 by good to the last drop I haven't had any issues with SYN3 oil. I use it year round. September 27, 2016
Rated 3 out of 5 by There are lots of oil choices out there. I ran the SYN3 oil for my first 2 oil changes. I then switched at the recommendation of a friend to Redline oil. They make a specific oil for the engine, transmission and primary. I must say the clutch actuation and gear shifting are greatly improved with the Redline product. It costs a bit more but in my opinion is worth it. August 15, 2016
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14 Questions | 11 Answers

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1 answer

Sportster Primary

Is this lube suitable for an 2008 Sportster primary case lube? I wanted to switch the entire bike to just one Synthetic lube.
August 6, 2016
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Dodge City, KS
I Ride: XL2008N
How I Ride: Local - Solo
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Answer: 
I have the 2007 Sportster and only put in the oil that is recommended in the owners/shop manual. My manual states as a "Note" Add only enough of Genuine Harley-Davidson Formula + Transmission and Primary Chaincase Lubricant. My wife has a Dyna Switchback and her manual also states this same oil, so that is what I go with. The dealership said go ahead and put in the syn 3 but the bike is still under warranty and the manual does not say to use it, so I am sticking with the manuals recommendation. Only my Roadking manual does say you can use the synthetic oil, so I do in my King. Don't deviate from the manual is my best advice. Good luck and safe riding.

Ken
August 7, 2016
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Scarborough, Maine
I Ride: 2014 Road King/2007 Sportster
How I Ride: Touring - Solo
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2015 Softail Deluxe - Owners manual says
"Use only FORMULA+ TRANSMISSION AND PRIMARY CHAINCASE LUBRICANT (Part No. 99851-05 qt) when changing primary chaincase lubricant"

Also, for the transmission the manual says "Mixing mineral-based lubricants with SYN-3 in the transmission can damage the transmission"

Since 100% of the transmission fluid can not be drained with a "normal" service.

Is the manual wrong, or is the web site wrong about being able to use this in the primary and transmission?
May 11, 2016
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Michigan
I Ride: 2015 Softail Deluxe
How I Ride: Local - Solo
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Answer: 
Hey FLSTN,

The minimal residue of the mineral-based lubricant that is left after drainage will not cause damage when switching over to SYN3. And , yes, SYN3 can be used in all three locations of the bike.
May 12, 2016
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Milwaukee, WI
How I Ride: Local - Solo
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I was told by dealer not to use Synthetic in my 2010 Road King Classic of course I want the best for my Harley, they say engine runs to hot?? so I use regular Harley 20W50 oil, did I mishear them or is this fact?
July 10, 2015
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The Villages Fl
I Ride: 2010 Road King Classic
How I Ride: Local - Solo
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Answer: 
So this is the big debate, SAE 20W50 vs. SYN3®. I can tell you that SYN3® was formulated to provide high-temp protection for high-output engines. But again, it's all a matter of opinion.

It certainly does make life a lot easier since you can use SYN3® in your engine, tranny and primary chaincase.
July 17, 2015
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Milwaukee, WI
How I Ride: Local - Solo
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If so, this would make it a synthetic blend vs. a full synthetic??
June 1, 2015
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Charlotte, NC
I Ride: FLXH, 2012
How I Ride: Touring - Solo
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May 28, 2015
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North carloina
I Ride: 2014 FLHXS
How I Ride: Touring - Solo
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