Help, primary fluid
Grand HDF Member
Joined: Sep 2005
Posts: 4,890
Likes: 73
From: MA
Why drain and replace? Drain it into a clean container, swap out the cover and put the oil back in. Don't over think this.
Last edited by soos; May 10, 2014 at 06:08 PM.
Road Master
Joined: May 2008
Posts: 1,178
Likes: 5
From: Central Calif
drain and re-use -- its only got a little mileage on it -- I've done it before
don't worry about mixing good quality oils -- just make sure in the primary that you don't use regular automotive engine oil as the friction modifiers may not allow the clutch to work properly
don't worry about mixing good quality oils -- just make sure in the primary that you don't use regular automotive engine oil as the friction modifiers may not allow the clutch to work properly
Extreme HDF Member
Joined: Jun 2011
Posts: 10,216
Likes: 224
From: Glendale AZ
Yup, I've been using the T6 for quit some time and it's the smoothest. Tried many variations and the least noisy is the Rotella....I change mine out every 2k on both our bikes.
Supporter
Joined: Oct 2012
Posts: 1,242
Likes: 1
From: Farmingdale, New York
I'm gonna try Rotella next primary change........... keep reading about here.
Road Master
Joined: Mar 2011
Posts: 988
Likes: 1
From: Ashevegas
Like mentioned, since your oil is so new I would drain and reuse. Drain into a clean container and be careful pouring it back in. You can use any motorcycle rated oil in the primary like Mobil 1 V-Twin 20W-50. I prefer H-D Formula+ in mine. Just make sure to fill to your bikes dry fill spec since you've had the outer primary cover off.
Last edited by rbferg; May 10, 2014 at 11:27 PM.
Ultimate HDF Member
Joined: Apr 2014
Posts: 6,322
Likes: 2,500
From: Tennessee
Just drain it into a clean pan and put it back in after you change the cover.