Does tranny fluid have to be motorcycle specific?
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Tourer
Joined: Apr 2009
Posts: 336
Likes: 9
From: Elk Grove, California
Does tranny fluid have to be motorcycle specific?
In reading the various posts on oil topics and specifically, transmission fluild, it appears to me that the transmission fluid for our bikes doesn't need to be motorcycle specific since there is separate fluid for the primary/clutch. Is this correct?
Stellar HDF Member
Joined: Mar 2007
Posts: 2,034
Likes: 45
From: Michigan
Id bet any good trans fluid would do and your correct the trans, engine and primary all are separate.. What your are looking for is a good quality gear lube that wont break down and will help quiet the noisy transmission gears... IE: bananna peels ,saw dust or possibly Quaker oats ... The Quaker oats also doubles as a radiator sealer if you have a V rod..
Dave
Dave
Seasoned HDF Member
Joined: Oct 2006
Posts: 5,977
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From: Nevada
No, but I'd go with a good quality synthetic.
Road Master
Joined: Jul 2007
Posts: 914
Likes: 1
From: Republic of Texas
Use gear oil in a gear box, and further, my advice would be, don't buy into the "Syn3" hype from HD. It's not full synthetic, and it's not a gear oil. There are lots of discussions here on recommended lubricants.
Last edited by racklefratz; Jun 16, 2009 at 06:51 PM.
Stellar HDF Member
Joined: Nov 2005
Posts: 3,183
Likes: 837
From: KMHT KFMY
That's what I use and would suggest to you.
The primary needs a bike spec oil (JASO MA rated) to make sure it has no friction modifiers..the crap they put in car oil to get MPG but screws up the clutch in a FUBAR way.
The engine, I use Mobil 1 V Twin oil, but there are many other quality synths out there, and there are people who run cage oil in their bikes too. YMMV
Elite HDF Member
Joined: Mar 2006
Posts: 4,722
Likes: 5
From: Biddeford, Maine
Exactly................it's a gear box so it needs a good gear lube.
I use Mobil 1 75w-90.
Steve
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Road Warrior
Joined: Jul 2006
Posts: 1,532
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From: Rochester N.Y.
I've used Redline Shockproof Heavy and Amsoil 75w90 in my gear box.
Both work well and quiet 5th gear a bit too.
Any quality full synthetic gear lube should work just fine.
The Redline looks a little funny like pepto bismol , but is a favorite around here.
Mick
Both work well and quiet 5th gear a bit too.
Any quality full synthetic gear lube should work just fine.
The Redline looks a little funny like pepto bismol , but is a favorite around here.
Mick
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Elite HDF Member
Joined: May 2006
Posts: 3,927
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From: Midwest
That is correct. It needs to be Redline Shockproof Heavy. It might be difficult to find over the counter, but you can order it online. I bought a gallon because with shipping costs included it wasn't that much more.
Last edited by Sharknose; Jun 16, 2009 at 10:27 PM.