View Poll Results: A poll

HD primary oil #99887-84 (old style)

617

12.18%

Syn 3

710

14.02%

Amsoil

1,106

21.83%

Bel ray

127

2.51%

Rev tech

1.01%

Dyna cycle

0.22%

Redline

611

12.06%

Mobil 1

1,088

21.48%

Doesn't matter

156

3.08%

other

589

11.63%

Voters: 5066. You may not vote on this poll

What Primary Oil is your Choice

Thread Tools

Search this Thread

Apr 6, 2006 | 11:52 PM

#21

OldFenderGuy

Ultimate HDF Member

Joined: Sep 2005

Posts: 8,641

Likes: 26

From: Ozark Country

RE: What Primary Oil is your Choice

What do you guys think of using Rotella T 15W-40 non-synthetic in the primary?

Friend of mine gave me a case of Rotella, and I'd hate to see it go to waste.

BTW, I run Mobil V-Twin 20W-50 in the crank and Mobil 75W-90 in the tranny.

Apr 8, 2006 | 12:09 PM

#22

a21m

Tourer

Joined: Mar 2006

Posts: 272

Likes: 1

From: Grove City Ohio

RE: What Primary Oil is your Choice

I just switched to shell rotella t 15w40 in the crankcase and primary. no problems that i can tell. everything seems to work fine. i put belray in the trans, but will probably switch to a 75w90 next fluid change.

May 19, 2006 | 12:07 PM

#23

Spectrexx

Tourer

Joined: May 2006

Posts: 458

Likes: 5

From:

RE: What Primary Oil is your Choice

I use whatever is on sale at Walmart or Autozone. 10W-40 works fine for me in temps of 10 deg. to 90 deg. F.

Jun 5, 2006 | 09:22 PM

#24

1flhtk4me

Seasoned HDF Member

Joined: Apr 2006

Posts: 10,675

Likes: 95

From: Billings,Mt.

RE: What Primary Oil is your Choice

Where do you buy the M1 V-twin oil at?

I think I would use a 4-stroke motorcycle oil that can be used with a clutch in the primary.I have some Motul 20-50,think Ill give that a try.

Jun 6, 2006 | 01:16 AM

#25

goodbirds

Outstanding HDF Member

Joined: Apr 2006

Posts: 2,395

Likes: 25

From: St George, UT

RE: What Primary Oil is your Choice

Switched from Syn3 to HD Formula+ in the transmission and primary chain case. First impression is that the tranny shifts smoother/easier. This on recommendation from Zion's ace tech with 28 years experience. The occasion of the oil change was a leak around the shifter shaft and replacing all seals while we were in there. Is it possible the systhetic damaged the seals? Just wondering. The Ultra has 40,000 on it, always maintained by HD.[:@]

Jun 26, 2006 | 11:31 PM

#26

Steve On 3

Outstanding HDF Member

Joined: Jun 2005

Posts: 2,615

Likes: 31

From: Charlotte Area

RE: What Primary Oil is your Choice

While we're talking oil, I'm having a wrist pin put in my rear cylinder. My mechanic swears it's because the previous owner and therefore on the PO's recommendation, I ran Castrol 20w50 . He says regular oil is not made to put up with the heat especially here in the south. The previous owner had a crate engine put in 20k ago because it developed a wrist pin problem and the dealer forgot to put the keeper in when he rebuilt the top ends. Two engines, two wrist pins. Now understand the previous owner changes religously at 2500 miles, uses Fram filters and never fails to keep up with maintennance. His other bike 97 RK has 170k on it and still running strong.

Did the auto oil cause the wrist pin problems? I dunno, but I know when I get it back, if there ain't synthetic in the crankcase, there soon will be. Probably Mobil1 V Twin and Mobil 1 75-90 in the tranny. Not sure what in the primary, maybe HD formula +

Ride safe

Bubba

Jul 3, 2006 | 01:17 PM

#27

skulboy

3rd Gear

Joined: Jul 2006

Posts: 7

Likes: 0

From: orland park,il

RE: What Primary Oil is your Choice

i've been using mobil 1 atf, no clutch drag or slip, haven't had to adjust the clutch outta necessaty, just regular intervals. also noticed less shavings on the magnet!