Need your opinion...(mobil-1) 75/140 gear lube

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Jul 18, 2009 | 07:46 PM

#31

tgshoe

Road Captain

Joined: May 2009

Posts: 642

Likes: 0

From: Haslet, Texas

I would help you but am busy trying to get the links to work in this other post about the new 2010's.
Seriously I switched to Amsoil 20w50 in engine amsoilsevere gear 75w90 for transmission and amsoil 10w40 for primary. Works well and tranny is quiet.

Jul 18, 2009 | 08:49 PM

#32

Liketheglide

Intermediate

Joined: Jul 2007

Posts: 40

Likes: 0

From: SE Mo

Quote:

Originally Posted by tda69

Forgot to mention that the other advantage I found with the 140 weight oil in the tranny is that it really minimizes 5 gear whine and geartrain noise. Wish I did this at the 1000 mile service.

Exact same thing I noticed, 5th gear lots quieter...... All I will use in tranny from now on!

Jul 18, 2009 | 10:17 PM

#33

iclick

Extreme HDF Member

Joined: Sep 2005

Posts: 11,615

Likes: 50

From: Baton Rouge, LA

Quote:

Originally Posted by gunfighter

...and ATF in the primary.ATF in the primary? Are you crazy?

No, I don't think you're crazy. Are you using Type F or Dextron?

Jul 19, 2009 | 11:29 AM

#34

5 Speed Suicide

Tourer

Joined: Jan 2009

Posts: 386

Likes: 0

From: iowa

You can get amsoil onile as well as redline. Have to pay an extra $7-8 for shipping ,but to me it is worth it. I just ordered ams for the engine and red hvy for the tranny. my 2 cnts

Jul 19, 2009 | 12:48 PM

#35

Scooter68

Road Master

Joined: Jul 2008

Posts: 948

Likes: 1

From: Worth, Illinois

I just changed all three to Mobil1 in all three holes. But I use Mobil1 20w50 V-Twin in the engine, Mobil1 75W90 in the primary, and mobil1 75w140 in the trans. Seems to shift really smooth now and the engine seems a little cooler with the synthetic in there.