Gear Lube
Road Master
Joined: Sep 2010
Posts: 836
Likes: 1
From: Rocky Hill, CT.
5 speed = Amsoil 75W-110 Extreme
6 speed ( helical gears ) = Amsoil 75W-140 Extreme
My 6 speed shifts very well and if you take a look and feel of the oil prior to installing you will see it's not all that thick.
I don't know what the brain surgeons at HD were thinking when they spec.'d 20W-50. ??
6 speed ( helical gears ) = Amsoil 75W-140 Extreme
My 6 speed shifts very well and if you take a look and feel of the oil prior to installing you will see it's not all that thick.
I don't know what the brain surgeons at HD were thinking when they spec.'d 20W-50. ??
Extreme HDF Member
Joined: Jun 2011
Posts: 10,216
Likes: 224
From: Glendale AZ
Any new information on using some light weight syenthic gear lube in my transmission in place of the 20w50 Amsoil. This weekend we did a run to Daytona, on Interstae @ about 70mph,it sounds like a barrell of monkeys with ball peen hammers trying to hammer their way out. Just a huge rattling and clanging in 6 gear. I know some that some is normal as was 5th gear lound on my 08. Now the 11 Ultra limited sounds pretty loud. Ought I turn the radio up and keep going with my Amsoil or look into some of the 70 w 90 lubes for my 6 speed
Thanks
Mark
Thanks
Mark
Elite HDF Member
Joined: Jul 2008
Posts: 4,741
Likes: 45
From: Indian Land, SC
I'm trying Spectro Heavy Duty Platinum 6-speed Transmission Oil 75w/140 this time around. I figure if Baker recommends it and ships it with all their transmissions it must be half decent.
Been using Red Line HD Shock Proof which worked well. Man that stuff stinks when you drain it out and let it sit in a container in your garage over night.
Been using Red Line HD Shock Proof which worked well. Man that stuff stinks when you drain it out and let it sit in a container in your garage over night.
Elite HDF Member
Joined: Sep 2007
Posts: 4,928
Likes: 69
From: Near Myrtle Beach, SC
I decided, just for the hell of it, to try the Redline Shockproof. So now I am trying it and so far so good. Had the HD stuff in there before, and it seemed to work fine as well.
Primary Amsoil 20w50
Trans Amsoil 75w-140
Engine Mobil-1 VTwin 20w-50
No issues here.
Just had the 25k service done at my local indy mechanic.
Total cost: $185.29 !!! beat that "Stealerships."
Well, I DID have a $10 off coupon and it was on BLACK Friday!!!
Trans Amsoil 75w-140
Engine Mobil-1 VTwin 20w-50
No issues here.
Just had the 25k service done at my local indy mechanic.
Total cost: $185.29 !!! beat that "Stealerships."
Well, I DID have a $10 off coupon and it was on BLACK Friday!!!
Road Master
Joined: Dec 2008
Posts: 1,183
Likes: 1
From: Las Vegas
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Tourer
Joined: Feb 2008
Posts: 473
Likes: 0
From: The Peach State!
You might want to try and ratchet your primary chain. Sounds like it could be a little loose and not a tranny problem at all. A friend had noises like you describe in 6th gear and it was a loose primary chain.