Touring Models Road King, Road King Custom, Road King Classic, Road Glide, Street Glide, Electra Glide, Electra Glide Classic, and Electra Glide Ultra Classic bikes.
Sponsored by:
Sponsored by:

AMSOIL Recommendation 75w90

Thread Tools
 
Search this Thread
 
Old Dec 22, 2007 | 02:09 PM
  #1  
russl179's Avatar
russl179
Thread Starter
|
Road Warrior
Joined: Apr 2006
Posts: 1,621
Likes: 1
From: Matthews, NC
Default AMSOIL Recommendation 75w90

Just just had my 15000 maintenance performed. I had Amsoil Severe Gear 75w90 installed. So far, I can honestly tell you that this oil is making a difference! The transmission seems to be smoother, the 5th gear whine has diminished in intensity. I recommend the AMSOIL 75w90 for your primary and transmission.
 
Reply
Old Dec 22, 2007 | 02:24 PM
  #2  
dawg's Avatar
dawg
Seasoned HDF Member
Shutterbug
Liked
Loved
Community Favorite
Joined: Jun 2006
Posts: 28,562
Likes: 3,956
From: Vermont
Default RE: AMSOIL Recommendation 75w90

A little overkill in the primary, but thats just my opinion. Amsoil also has a 75/110 for trannys now
 
Reply
Old Dec 22, 2007 | 02:35 PM
  #3  
SoCal_Pappy's Avatar
SoCal_Pappy
Elite HDF Member
Joined: Oct 2006
Posts: 4,602
Likes: 5
From: Southern California - Palm Springs Area
Default RE: AMSOIL Recommendation 75w90

Changed out to AMSOIL SG in the Tranny @ 1000 mile... Does Work!!!
 
Reply
Old Dec 22, 2007 | 03:23 PM
  #4  
Fisherman 77's Avatar
Fisherman 77
Intermediate
Joined: Dec 2007
Posts: 38
Likes: 0
Default RE: AMSOIL Recommendation 75w90

Switched to Amsoil and it's definately much smoother shifting as well as a reduction in engine noise over Syn 3.
 
Reply
Old Dec 22, 2007 | 04:32 PM
  #5  
Duracell's Avatar
Duracell
Stellar HDF Member
15 Year Member
Liked
Loved
Top Answer: 1
Joined: Oct 2007
Posts: 2,806
Likes: 1,754
From: New Bern NC
Default RE: AMSOIL Recommendation 75w90

Good to know. I'll be doing my 5,000 mile service this week end and Ihave already purchasedthe Amsoil 75w-90.
 
Reply
Old Dec 22, 2007 | 06:35 PM
  #6  
nvsteve's Avatar
nvsteve
Seasoned HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Oct 2006
Posts: 5,977
Likes: 85
From: Nevada
Default RE: AMSOIL Recommendation 75w90

ORIGINAL: russl179

Just just had my 15000 maintenance performed. I had Amsoil Severe Gear 75w90 installed. So far, I can honestly tell you that this oil is making a difference! The transmission seems to be smoother, the 5th gear whine has diminished in intensity. I recommend the AMSOIL 75w90 for your primary and transmission.
I'm thinking you didn't really mean the 75/90 SG in your primary.
 
Reply
Old Dec 22, 2007 | 07:21 PM
  #7  
Comfortably Numb's Avatar
Comfortably Numb
Outstanding HDF Member
Joined: Mar 2005
Posts: 2,007
Likes: 4
From: Vancouver, B.C.
Default RE: AMSOIL Recommendation 75w90

I use the same stuff in my tranny. I didn't really notice much diff from Syn 3 when I changed over.


CN
 
Reply
Old Dec 22, 2007 | 08:54 PM
  #8  
rustyrun's Avatar
rustyrun
Tourer
Joined: Mar 2006
Posts: 473
Likes: 0
From: Melbourne, Florida
Default RE: AMSOIL Recommendation 75w90

I run amsoil 20-50 in the engine and transmission. Living in florida I was told that I did not need the 75-90 in the transmission. It seems to be fine however things are noisier now than when I ran Redline shockproof in the xmsn. Any opinions?
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

6 Weirdest Harley-Davidsons Ever Sold to the Public

 Verdad Gallardo
story-1

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-2

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-3

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-4

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-5

Killer Custom's Jail Break Is The Breakout That Refused to Blend In

 Verdad Gallardo
story-6

Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

 Verdad Gallardo
story-7

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-8

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-9

10 Motorcycles You Should Never Buy

 Joe Kucinski
Old Dec 22, 2007 | 09:03 PM
  #9  
russl179's Avatar
russl179
Thread Starter
|
Road Warrior
Joined: Apr 2006
Posts: 1,621
Likes: 1
From: Matthews, NC
Default RE: AMSOIL Recommendation 75w90

Yep. I messed up. I wanted to say that I had the dealership put the 75w90 in the tranny and 20w50 in the primary...sorry.
 
Reply
Old Dec 22, 2007 | 09:16 PM
  #10  
captjon37's Avatar
captjon37
Outstanding HDF Member
Joined: Sep 2007
Posts: 2,272
Likes: 3
From: Slidell, Louisiana
Default RE: AMSOIL Recommendation 75w90

I tried amsoil in my truck first. Reduced engine noise sold me on it so i used it in my boat engine and lower unit but playing with bike too much to go out on the boat. I had the 1k done on the bike and ran 400 miles and switched it to amsoil and i did notice that neutral was easier to find and gear box noise reduced so i will stick with it. Anyone using amsoil filter on their bike or do you use harleys?
 
Reply



All times are GMT -5. The time now is 10:02 AM.

story-0
6 Weirdest Harley-Davidsons Ever Sold to the Public

Slideshow: From military-inspired singles to scooters and three-wheel utility vehicles, these Harleys took the company far outside its comfort zone.

By Verdad Gallardo | 2026-06-02 18:34:10


VIEW MORE
story-1
7 Times Harley-Davidson Chucked Tradition Out the Window

Slideshow: Harley-Davidson built its reputation on nostalgia, but every so often, the company took a hard left turn into the future.

By Verdad Gallardo | 2026-05-20 11:18:19


VIEW MORE
story-2
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-3
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-4
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-5
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-6
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-7
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-8
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE
story-9
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE