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What Primary Oil is your Choice
Seasoned HDF Member
Joined: May 2008
Posts: 21,095
Likes: 12,640
From: South Carolina
It is designed to allow the clutch plates in a limited slip differential to slip (eliminating chatter when going around a corner".
Advanced
Joined: Sep 2022
Posts: 89
Likes: 71
From: Kansas
Yes, the Valvoline 75-145 has a "limited slip" additive, but I tried it on the advice of an old Harley Tech & really didn't care about the additive. In my 17 year old machine (only 14k miles), it worked great, the shifting became noticeably smoother.
Also, I park my bike in the driveway & let it cool down & go out later to bring it in the garage (wife is sensitive to smell). I usually go out barefoot & can now find neutral with ease, every time.
Those old techs know a lot of good stuff about bikes, not something I would have thought of myself.
Also, I park my bike in the driveway & let it cool down & go out later to bring it in the garage (wife is sensitive to smell). I usually go out barefoot & can now find neutral with ease, every time.
Those old techs know a lot of good stuff about bikes, not something I would have thought of myself.
Stage II
Joined: Dec 2022
Posts: 2
Likes: 0
From: Star valley wy
Why is nobody mentioning the redline motor oil for the secondary or the primary?
Why is nobody mentio ing the redline motor oil for the secondary or the primary?
TC,
Now that Harley is not longer selling their primary fluid what you going with? You going to use their new stuff or switch over to a regular motor oil. Did my other two fluids ( Mobil 1 15-50) Crank and (Mobil 75-90) Tranny. Still up in the air on the primary.
Could not find any HD primary fluid at dealer. Local stores also did not have any of the listed items used by members here. Would standard Mobil 10w- 40 be a good choice?
Or should I stick with a syn like Mobil 1 15-50.
Thanks for all you add to the forum.
Now that Harley is not longer selling their primary fluid what you going with? You going to use their new stuff or switch over to a regular motor oil. Did my other two fluids ( Mobil 1 15-50) Crank and (Mobil 75-90) Tranny. Still up in the air on the primary.
Could not find any HD primary fluid at dealer. Local stores also did not have any of the listed items used by members here. Would standard Mobil 10w- 40 be a good choice?
Or should I stick with a syn like Mobil 1 15-50.
Thanks for all you add to the forum.
Yep
[QUOTE=Dan89FLSTC;20840211]It is not a "Non Slip" additive, it is a "Limited Slip" additive.
It is designed to allow the clutch plates in a limited slip differential to slip (eliminating chatter when
Yep, I've had to use it in my trucks and jeeps.
It is designed to allow the clutch plates in a limited slip differential to slip (eliminating chatter when
Yep, I've had to use it in my trucks and jeeps.
Stellar HDF Member
Joined: Nov 2012
Posts: 2,620
Likes: 1,091
From: Eastern IA
I just had a shop do a 107 build on my 14 SG , my run out was .005 and he won't build with that much run out so the crank had to come out , I asked him to look over my compensator while it was apart , he asked if I had recently replaced it cause it had vary little wear . Nope had 35K on it and looked great , been running Spectro HD chaincase oil since the 1st change I did around 3K , proof enough for me. Also run their 6 speed gear oil in the trans.
Cruiser
Joined: Mar 2007
Posts: 163
Likes: 32
From: Amsterdam , The Netherlands
any mineral 20W50 , API SG
works fine !
works fine !
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