What fluid to put in the primary?
Thread Starter
|
Road Captain
Joined: Mar 2008
Posts: 724
Likes: 2
From: Cincinnati Ohio
What fluid to put in the primary?
Have just put Amsoil or SYN 3 in all 3 holes, but was recently thinking about doing ATF. Have also heard of guys using lighter weight automotive oil, conventional even in theirs. What do you use?
Seasoned HDF Member
Joined: Jan 2009
Posts: 5,149
Likes: 2,975
From: WACO
Right now I am running Walmart Supertech synthetic 20-50 oil. I have run Amsoil in primary but figured it was a waste of money. After all it is a chain and clutch. I have run transmission fluid in my shovels with a closed primary. Have run 30 wt. oil. Remember. Back in the day the primary chain was lubed with the same oil that ran through the engine. A oil line ran into the back of the inner primary onto the chain and then that oil was scavanged back into the oil tank to run though the engine/primary endlessly or until the engine wore out. Which ever came first.
I always wondered what HD engineer came up with that idea?
I always wondered what HD engineer came up with that idea?
Road Warrior
Joined: Jun 2008
Posts: 1,344
Likes: 173
From: Watertown, CT
re:Back in the day the primary chain was lubed with the same oil that ran through the engine. A oil line ran into the back of the inner primary onto the chain and then that oil was scavanged back into the oil tank to run though the engine/primary endlessly or until the engine wore out. Which ever came first.
I always wondered what HD engineer came up with that idea?
Seems to me I remember the oil was allowed to drip out of the primary on my "47 Knuckle giving rise to the "oil leaker" tag that Harleys had. How was the oil scavanged back?
Not trying to hijack just curious
I always wondered what HD engineer came up with that idea?
Seems to me I remember the oil was allowed to drip out of the primary on my "47 Knuckle giving rise to the "oil leaker" tag that Harleys had. How was the oil scavanged back?
Not trying to hijack just curious
Road Master
Joined: Sep 2010
Posts: 836
Likes: 1
From: Rocky Hill, CT.
Any oil used with a wet clutch should be rated for it.
Any of the synthetics should carry that rating but why would one put Wal-Mart crap in a bike worth 10-25 thousand dollars.
$14.99 for a quart of Amsoil is cheap if you consider how much per mile it actually boils down to.
An Amsoil replacement in all three holes is only $75 bucks.
The dealer gets $390.00 and uses their Syn3 garbage.
Do the math and don't skimp quality to save 2 dollars.
Any of the synthetics should carry that rating but why would one put Wal-Mart crap in a bike worth 10-25 thousand dollars.
$14.99 for a quart of Amsoil is cheap if you consider how much per mile it actually boils down to.
An Amsoil replacement in all three holes is only $75 bucks.
The dealer gets $390.00 and uses their Syn3 garbage.
Do the math and don't skimp quality to save 2 dollars.
Seasoned HDF Member
Joined: Apr 2006
Posts: 10,675
Likes: 95
From: Billings,Mt.
Trending Topics
Road Captain
Joined: Sep 2005
Posts: 619
Likes: 0
From: Northeast U.S.
re:Back in the day the primary chain was lubed with the same oil that ran through the engine. A oil line ran into the back of the inner primary onto the chain and then that oil was scavanged back into the oil tank to run though the engine/primary endlessly or until the engine wore out. Which ever came first.
I always wondered what HD engineer came up with that idea?
Seems to me I remember the oil was allowed to drip out of the primary on my "47 Knuckle giving rise to the "oil leaker" tag that Harleys had. How was the oil scavanged back?
Not trying to hijack just curious
I always wondered what HD engineer came up with that idea?
Seems to me I remember the oil was allowed to drip out of the primary on my "47 Knuckle giving rise to the "oil leaker" tag that Harleys had. How was the oil scavanged back?
Not trying to hijack just curious
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Times Harley-Davidson Chucked Tradition Out the Window
Verdad Gallardo
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
Road Warrior
Joined: Oct 2006
Posts: 1,916
Likes: 0
From: San Antonio, Texas
Running HD F+ because the synthetics I have tried made my clutch "grabby". Works just fine. Used to run Mobil Delvac (?) 15/40 diesel engine oil in the primary on my Wide Glide and it worked fine as well.
