FAQ  •  Register  •  Login

Substitute Lube.....

Moderators: Curt!, Pa



Posts: 5

Joined: Tue Sep 12, 2006 9:24 pm

Location: Louisiana

Post Wed Mar 14, 2007 3:37 pm

Substitute Lube.....

What is a good Auto Parts store substitute for H-D primary case lube?


User avatar

Posts: 1538

Joined: Thu Jun 19, 2003 12:01 am

Post Sat Mar 31, 2007 10:59 pm

twinkeez run the same oil in all 3 areas, motor/tranny/primary.

since oil is the cheapest thing on a HD, i don't scrimp on it..

s eagle

Posts: 24

Joined: Thu May 22, 2008 1:06 pm

Location: My-am-mah, Flor-a-duh

Post Wed Aug 12, 2009 1:14 pm

Re: Substitute Lube.....

I use AMSOIL SAE 20W-50 Synthetic Motorcycle Oil (MCV):


It may cost a little bit more but I think it is worth it. Living in south FLA things get pretty hot. Although I don't have any numbers to back it up, I think my RK runs a bit cooler with the AMSOIL syn. In standard ASTM testing AMSOIL performs better than the HD syn3 and HD 360 (and just about everything else):

http://www.amsoil.com/products/streetbi ... Paper.aspx

1946 knucklehead
1976 shovelhead
2006 road king

Youth and enthusiasm is no match for age and treachery.

Return to Twin Cams

Who is online

Users browsing this forum: No registered users and 1 guest

Powered by phpBB © 2000, 2002, 2005, 2007, 2012 phpBB Group.