-fork oil-
-fork oil-
Seasoned HDF Member
Joined: Mar 2012
Posts: 100,455
Likes: 19,810
From: Centennial, CO
I am using H-D "E" oil, which I think is standard. My understanding from in here and elsewhere is fork oil viscosity can make a very big difference in ride and handling characteristics, but cannot verify for myself.
Seasoned HDF Member
Joined: Oct 2012
Posts: 13,040
Likes: 12,956
From: Texas, USA
I am using the SE performance (heavy) fork oil. I only changed to help increase the dampening of the front end. I don't know how much "heavier" the performance oil is versus the type "E" oil.
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Seasoned HDF Member
Joined: Dec 2008
Posts: 19,735
Likes: 1,178
From: Jamestown, CA
thanks fur the replies ,
, been readin up on it , Never changed the fork oil and the bike is 13 years old.... 
just forgot about it ,,, 
. Any way thinkin about goin with SE medium , I think that's 10wt. the stock oil E is 5wt. and the Front End always felt to Soft . 
, been readin up on it , Never changed the fork oil and the bike is 13 years old.... just forgot about it ,,, . Any way thinkin about goin with SE medium , I think that's 10wt. the stock oil E is 5wt. and the Front End always felt to Soft .
I don't know how much brand matters.. even tho Harley Davidson products don't touch my bike. But I used Bel Ray 30w based on what I read in the touring forums in my 06 FXST and I like it. I think for being stock it rides much better in the front. Just my .02
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Seasoned HDF Member
Joined: Dec 2008
Posts: 19,735
Likes: 1,178
From: Jamestown, CA
, Mine is every 20,000 . 
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Grand HDF Member
Joined: May 2008
Posts: 4,624
Likes: 189
From: Newcastle, Ca.
Was using Maxima 15w prior ot upgrading front end. It reduced brake dive a bit but still rode nice.
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Ultimate HDF Member
Joined: Jun 2007
Posts: 9,193
Likes: 494
From: Richmond, VA
I just did a drop in kit and fork oil change on the wifes Sportster. I used the MOCO oils. I mix half standard (which is ATF) and half heavy. Extremely pleased with both the ride and handleing.
Club Member
Joined: May 2007
Posts: 145,895
Likes: 821
From: 40 miles Northeast of Indy..
fork oil is a complete non universal product. seems to be no standardizing to weight of oil and its what ever they put on the label.
thinking my indy used Med weight Bel-ray which is what they call there20W when I changed mine.
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thinking my indy used Med weight Bel-ray which is what they call there20W when I changed mine.
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