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Mobil 1 primary/gear

 
  #1  
Old 02-09-2019, 05:19 PM
Jmc543
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Default Mobil 1 primary/gear

Mobil 1 in the primary. Anyone doing this?
 
  #2  
Old 02-09-2019, 10:48 PM
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Yep, 20w-50 Walmart jug. Works fine. I use red line in my tranny tho.
 
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Old 02-09-2019, 10:51 PM
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Better off with HD Formula+ in the primary.
 
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Old 02-10-2019, 06:53 AM
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There is no reason on earth you can't use M1 20/50. HD F+ is also great . SYN will not hurt the clutch. F+ is a straight 50W lube.
 
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Old 02-10-2019, 08:12 AM
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belray in my tranny, that is after rebuild, and M1 in the crank and primary.
 
  #6  
Old 02-10-2019, 12:08 PM
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I use Redline in the Primary & Trany





 
  #7  
Old 02-10-2019, 05:37 PM
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Thanks for all the responses.
 
  #8  
Old 02-12-2019, 11:42 AM
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Originally Posted by TriGeezer View Post
Better off with HD Formula+ in the primary.
HD now offers a more expensive oil for their primary!

https://www.harley-davidson.com/stor...hetic-gear-oil
 
  #9  
Old 02-12-2019, 11:53 AM
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My clutch slipped when I had M1 in the primary and I had to go back to Formula+.
 
  #10  
Old 02-13-2019, 09:37 AM
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