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What "oil" is everyone using in their Tranny and primary Hole

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Old Apr 23, 2013 | 09:22 PM
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  #21  
WideGlideFever's Avatar
WideGlideFever
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Currently have Mobile 1 in all three. I previously ran Red Line products and will be switching back to them now that I found a local shop that sells it.
 
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Old Apr 23, 2013 | 09:50 PM
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HD synthetic all around
 
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Old Apr 23, 2013 | 10:24 PM
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Sharpie
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Tranny - Mobil1 75W90 Syn Gear Oil
Primary - Mobil1 Racng 4T 10W40
&
you didn't ask but
Engine - Mobil1 V-Twin 20W50


All Mobil1 Synthethic just as the Mobil1 Oil Engineer recommended when I emailed them.

Seriously, Do a search on the forum when you have a question. I bet there is a thread of Discussion to answer your question.
 
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Old Apr 23, 2013 | 11:18 PM
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Jason49
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Belray Primary Oil
Belray Gear Saver in transmission

*Note: I did have a significant "clunk" when shifting into first gear which is common, but this Belray stuff really seemed to solve this issue.
 
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Old Apr 23, 2013 | 11:31 PM
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I like popcorn oil in all three holes. I tried fry oil once but when the bike warmed up it smelled like french fries and I ended up getting chases by a bunch of fat chicks.
 
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Old Apr 23, 2013 | 11:32 PM
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Originally Posted by omaho5
I just go buy the appropriate oil at the dealer. Never a problem
I used to use HD synthetic, but I get Ams cheaper and it is a better oil.
Also, the severe gear takes the majority of thump out of the tranny.
You never know who HD uses for a supplier.
 
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Old Apr 23, 2013 | 11:46 PM
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Originally Posted by ChrisL07sb
I'm new to Harleys so sorry for my ignorance. I just put severe gear 75/90 in my primary. Did I mess up? In the manual it says for hd trans and chaincase so I figured to use the same stuff I put in the tranny
Depending on year and model of bike, the new ones as per the manuals are to have 20-50 in all three holes. With that said, Severe gear in tranny, and 20-50 in primary (thinner oil for wet clutch) or a primary oil. 20-50 in oil hole.
Gear oil in primary is not a good thing IMO. To thick.
 
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Old Apr 24, 2013 | 07:56 AM
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Extra virgin olive
 
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Old Apr 24, 2013 | 08:51 AM
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Mine is a 2007 with just over 13000 miles
 
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Old Apr 24, 2013 | 09:01 AM
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I have been using redline gear oil for the longest time, since I switched to Amsoil severe gear, no regret. Similar operation but the cold weather shifting makes a big difference, found redline hard to shift in cold weather morning.
 
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