Quick Oil ?
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Outstanding HDF Member
Joined: Aug 2005
Posts: 3,167
Likes: 7
From: FL & SoCal
Quick Oil ?
Is it ok to use either Mobil1 20W50 Vtwin Synthetic or Amsoil in the Transmission and Primary hole or do I need to use specific tranny oil for that?
I've been running the HD Syn3 stuff in all holes and like it but wanting to switch to something else because I'm tired of getting ripped off by the MoCo with their ridiculous prices.
I've been running the HD Syn3 stuff in all holes and like it but wanting to switch to something else because I'm tired of getting ripped off by the MoCo with their ridiculous prices.
Road Master
Joined: Aug 2010
Posts: 1,067
Likes: 2
From: New Hampshire
Mobil says you can use the same their 20W50 VTwin in all three. I don't.
I use the 20w50 VTwin in the engine, their 10/40 racing oil in the primary and their 75/90 LS Gear lube in the transmission. All on the shelf at Advanced Auto Parts.
I use the 20w50 VTwin in the engine, their 10/40 racing oil in the primary and their 75/90 LS Gear lube in the transmission. All on the shelf at Advanced Auto Parts.
Road Warrior
Joined: Jun 2008
Posts: 1,759
Likes: 153
From: On a Large Sandbar, NY
Amsoil MCV 20w-50 can be used in the motor, primary and transmission..below is a link to a chart (click on the Harley-Davidson Oil Chart):
http://sureperformanceproducts.com/cat/18/
http://sureperformanceproducts.com/cat/18/
Seasoned HDF Member
Joined: Nov 2010
Posts: 17,548
Likes: 7,228
From: Oxford, Nc
Mobil 20W-50 V Twin in Motor at 5,000
Mobil 75w-90 Tranny at 10,000
Cheap No Name 10W-40 Wal-Mart Crap Dino in Primary at 5,000
*Just turned 92,000 miles with the original clutch plates in there.
Mobil 75w-90 Tranny at 10,000
Cheap No Name 10W-40 Wal-Mart Crap Dino in Primary at 5,000
*Just turned 92,000 miles with the original clutch plates in there.
Road Warrior
Joined: Sep 2009
Posts: 1,257
Likes: 2
From: Gastonia, NC
I think 20W50 is entirely too light for a tranny. I use BelRay85W140 in mine and it's doing fine. Of course, everyone's bikes are probably 'doing fine' so who knows?
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Road Master
Joined: Dec 2008
Posts: 1,183
Likes: 1
From: Las Vegas
As others have said; you can use it in all three holes. Ive done some searching myself to see what others are using and of course there are a lot of different opinions. Based on the research I think on my next change I will simply use Amsoil 20W50 in all three holes or at least in the engine/primary and maybe go with Amsoil 75W90 in the trans. Time will tell
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Tourer
Joined: Jul 2011
Posts: 444
Likes: 1
From: Grand Rapids, MI
The viscosity of 20w50 MOTOR OIL is very similar to 80W90 GEARLUBE. Note we are comparing apples to oranges. The two are measured differently. Many people claim there is less tranny "clunk" which I can understand. Coming from metric all my life, with the transmission integrated with the engine, I have no problem running 20w50 in the transmission.
Just fill her up and ride.
Just fill her up and ride.
