oils
Ultimate HDF Member
Joined: Nov 2016
Posts: 6,697
Likes: 774
From: Stuart, Fl
Same all three holes, these day all our oils are made of good products offering great protection just make sure its motorcycle oil. Not one is better then another just get the right spec for your bike.
Tourer
Joined: Sep 2016
Posts: 373
Likes: 83
From: FL East Coast /Western NC
except for me.... i also use the same.. 20w 50w valvoline dino 4 stroke all 3... sometimes i will switch off to mobil but always dino... change engine every 2 to 3 thousand... others every 5..
Seasoned HDF Member
Joined: Oct 2012
Posts: 11,210
Likes: 3,040
From: St.Louis Mo.
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Harley saz you can run Syn3 in all 3 holes, if your smart you won't.
The last time around I used Royal Purple max cycle 20/50 in the engine,
and Harley Formula Plus in the Primary and the Transmission.
The next time I will put a high quality Synthetic in the primary & transmission,
something like Bel Ray or Redline designed specifically for each hole.
John
The last time around I used Royal Purple max cycle 20/50 in the engine,
and Harley Formula Plus in the Primary and the Transmission.
The next time I will put a high quality Synthetic in the primary & transmission,
something like Bel Ray or Redline designed specifically for each hole.
John
Road Master
Joined: Sep 2006
Posts: 793
Likes: 23
From: AZ
Saw an interesting post about Primary oil and its relation to the famous shift clunk.
I am running M1 4T in the primary and the clunk although never went away did become less. OK, I change fluid again but only had M1 v-twin 20W-50 so I put that in. First I thought that it was my imagination but the Clunk did increase. The post talked about how 20W-50 can cause just a little more drag on the clutch plates than the 10W40, It was not harming the clutch but did bring back the clunk. Could be why Harley switched out from using SYN 20W-50 from their primary. too many complaints about the clunk returning. I will be going back to 10W-40, anyone else notice any changes in clunk vs. oil weight? and yes W stands for winter I am referring to 40 vs. 50 50.
I am running M1 4T in the primary and the clunk although never went away did become less. OK, I change fluid again but only had M1 v-twin 20W-50 so I put that in. First I thought that it was my imagination but the Clunk did increase. The post talked about how 20W-50 can cause just a little more drag on the clutch plates than the 10W40, It was not harming the clutch but did bring back the clunk. Could be why Harley switched out from using SYN 20W-50 from their primary. too many complaints about the clunk returning. I will be going back to 10W-40, anyone else notice any changes in clunk vs. oil weight? and yes W stands for winter I am referring to 40 vs. 50 50.