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What fluid do you run in your primary?

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  #1  
Old 09-17-2008 | 01:11 PM
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Default What fluid do you run in your primary?

What fluid do you run in your primary. Can I run Auto Transmission Fluid? This is going in a 1985 FLHTC.
 
  #2  
Old 09-17-2008 | 01:17 PM
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YES, ATF is just dandy in the primary and cheaper too.
 
  #3  
Old 09-17-2008 | 01:19 PM
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Leftcoaster,
Will Dextron II work?
 
  #4  
Old 09-17-2008 | 01:46 PM
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I run this: http://www.valvoline.com/pages/produ...asp?product=64

Baker recommends Dex III / Merc ATF, as does Primo-Rivera. Works fine for me.

With stock clutches, the new "Formula" primary oil from HD is fine and realitively inexpensive.
 
  #5  
Old 09-17-2008 | 03:07 PM
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Red Line V-Twin Primary Case Oil.
 
  #6  
Old 09-17-2008 | 03:10 PM
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Redline MTL
 
  #7  
Old 09-17-2008 | 05:49 PM
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Originally Posted by dawg
Redline MTL
+ 1 on Redline MTL
 
  #8  
Old 09-17-2008 | 05:58 PM
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I go down to the local chicken shack and get all the week old frying oil they got. Works just fine. Now if only the dogs in the neighborhood would stop following me around...

Seriously HD Formula + or any good 10w-40 motor oil is just fine too, and no dogs....

A synthetic is just a waste of $$$$
 

Last edited by soos; 09-17-2008 at 06:01 PM.
  #9  
Old 09-17-2008 | 06:00 PM
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10/40 synthetic
 
  #10  
Old 09-17-2008 | 06:57 PM
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Mobile 1 15W-50 synthetic
 


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