Syn3
Outstanding HDF Member
Joined: Jan 2008
Posts: 3,328
Likes: 15
From: Pacific Northwest
Welcome to the forum. It's a good one that you can learn much from. The short answers to your questions are no and yes.
FYI: If you use the "Search" function at the top of the page you'll find about a zillion threads on Syn3 that are both informative and entertaining and they'll keep you busy for hours.
FYI: If you use the "Search" function at the top of the page you'll find about a zillion threads on Syn3 that are both informative and entertaining and they'll keep you busy for hours.
Road Master
Joined: Dec 2009
Posts: 783
Likes: 66
From: Sacramento
For me, I switch between Mobil 1 V twin 20-50 in engine, Royal Purple atf in the primary, and switch between Ams oil gear oil and Royal Purple synthetic gear oil in the gear box. I like the clutch engagement better with the atf and the gearbox is quieter and shifts better with the gear oil vs engine oil.
Cruiser
Joined: Feb 2008
Posts: 125
Likes: 0
From: olathe, ks
I know others have used other oils and swear by them. All I can say is this. I have always done my services at my dealer. They know my bike. I have had, 2004 lowrider, 2007 fatboy and now 2010 roadking. Always used harleys syn. oil. I have never had any problem. Am completely happy and they work. So you read and read and try if you like but if you want to use hd's syn, you wont go wrong. It works just fine.
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Road Master
Joined: Nov 2008
Posts: 773
Likes: 24
From: Findlay, ohio
Here we go......
I'm sure you will get many opinions and recommendations here. Syn3 is good for me, but would not hesitate to use Amsoil or Mobil.
I'm sure you will get many opinions and recommendations here. Syn3 is good for me, but would not hesitate to use Amsoil or Mobil.
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Road Warrior
Joined: Jul 2009
Posts: 1,979
Likes: 2
From: Northern Colorado
SYN3 is fine for the motor and primary but I personally don't think it is a very good transmission lubricant. I prefer 75w140 synthetic gear oil in the tranny. JMO
Last edited by NoCoLoco; Mar 3, 2010 at 07:35 PM.
