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Trans Oil Poll

Transmission Lube Poll

  • Redline Shockproof

    Votes: 188 15.0%
  • Amsoil

    Votes: 244 19.5%
  • HD Formula +

    Votes: 125 10.0%
  • Mobil 1 75/90

    Votes: 126 10.1%
  • Mobil 1 75/140

    Votes: 110 8.8%
  • Syn 3

    Votes: 102 8.1%
  • Royal Purple

    Votes: 45 3.6%
  • Bel Ray

    Votes: 56 4.5%
  • Lucas

    Votes: 33 2.6%
  • OTHER (Please specify)

    Votes: 223 17.8%

  • Total voters
    1,252
I wonder if I'm going to have trouble putting the mobile 75-90 syn in my tranny case? I hear it's too slick for clutch?
 
I searched this weekend in my small town, and as close as I could find was Valvoline 85/150 gear oil. Is thia acceptable?
 
Ok Glider,

It's like you said, It smoothed the shift and reduced the rattle.
I'm so impressed with The Spectro 6 speed I went to Danbury HD (23 miles away) bought 2 oil filters returned home and changed the crankase oil to Spectro Platinum V Twin 20 50.

Wow what a gorgeous day

Al

:USA

:CONNECTICUT
 
Last edited:
I just switched to SPECTRO Platinum in my Transmission - what a difference. I've got a 09 Road King and had them put SynTech in at the 1000mile service (They put it in all three holes). After reading the posts I was really concerned about running SynTech in the Transmission. The SPECTRO is like night and day. Shifting is much easier and the 5th gear whine is almost entirely gone.

Now I need to switch my engine oil - not sure what I am going to use. Perhaps AMSOIL or Mobil 1 V Twin?
 
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