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Cruiser
Posts: 74
Lehigh Valley, Pa | It is odd the different results with the same oil. I tried Mobile 1 VT and the clutch slipped. It was not terrible and with a bit of hand control I could prevent it, but that is not how it should be. I went back to Vic oil and it cleared up. The motor was quieter with the M1VT oil.
My Kohler V twin lawnmower engine loves the M1 VT oil.... |
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Visionary
Posts: 3773
Pittsburgh, PA | I've always wondered if the cycles that have clutches slip with synth motorcycle oil have weaker clutches to start with? Kawasaki was known for this issue is their 1500 cc cruisers. Here later it was found to be weak clutch springs.... I never had a clutch slip on any of my cycles or atvs ... And I use only synth oil. I'm not saying I don't believe people... I just wonder if these same people will be replacing clutches sooner than others? Even when using oem oils. |
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Cruiser
Posts: 189
Baltimore, Md | rdbudd - 2011-04-13 7:50 PM I, too, have been using Amsoil in my motorcycles for a long time with great results. 10+ years running Amsoil in Victory motorcycles and no clutch slippage. We have all heard of the clutch slipping issues some owners have had when running Amsoil. I have to wonder if some people are using the wrong Amsoil, for the application, in an attempt to save a couple of bucks. The reason I have to wonder is because Amsoil makes three different 10W-40 synthetic oils at three different price levels. The XL extended life oil is not rated for wet clutches, and is $2 or $3 cheaper than the other 10W-40 oils they sell. If someone were to use it, instead of the Premium or the MC oil, I don't doubt that they would have issues with the clutch slipping. All Amsoil is synthetic, but not all of it is rated for wet clutches. Just wondering why some have problems while many others run it with no problem. I even ran it in a ZX14 with no clutch problems, and that thing put out 178 horsepower stock. Whatever the brand of oil one chooses to run in a wet clutch application, like a Victory, it better have the JASO-MA rating if you don't want to risk having a clutch issue. Some Amsoil products have it, some don't. Ronnie I can't speak for others, but in my case I used the high end-high priced Amsoil 20-50 that they recommended at the time for Vics and for wet clutches and I had serious slipping. I wasn't cheaping out or using a 'lesser' version. Now Amsoil specifically shows the 10-40W for Vics but STILL also shows the old 20-50 that I tried. Since my dealer is not having problems with the 10-40 and uses it, I may try it and see. But, the slipping problem I had was NOT related to using inferior spec oil or non-wet clutch rated Amsoil.
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Visionary
Posts: 1290
Ruskin, Fl | I use the 20w50 v-twin most of the time. Couple of time I used the 10w40 racing. Didn't notice a difference. I go about 4k, or when the clutch starts to shudder when you take off. I barely got 2K on Vic oil before clutch felt grabby |
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Visionary
Posts: 1632
Jasper, MO | flint350 - 2011-04-14 10:25 AM
rdbudd - 2011-04-13 7:50 PM I, too, have been using Amsoil in my motorcycles for a long time with great results. 10+ years running Amsoil in Victory motorcycles and no clutch slippage. We have all heard of the clutch slipping issues some owners have had when running Amsoil. I have to wonder if some people are using the wrong Amsoil, for the application, in an attempt to save a couple of bucks. The reason I have to wonder is because Amsoil makes three different 10W-40 synthetic oils at three different price levels. The XL extended life oil is not rated for wet clutches, and is $2 or $3 cheaper than the other 10W-40 oils they sell. If someone were to use it, instead of the Premium or the MC oil, I don't doubt that they would have issues with the clutch slipping. All Amsoil is synthetic, but not all of it is rated for wet clutches. Just wondering why some have problems while many others run it with no problem. I even ran it in a ZX14 with no clutch problems, and that thing put out 178 horsepower stock. Whatever the brand of oil one chooses to run in a wet clutch application, like a Victory, it better have the JASO-MA rating if you don't want to risk having a clutch issue. Some Amsoil products have it, some don't. Ronnie I can't speak for others, but in my case I used the high end-high priced Amsoil 20-50 that they recommended at the time for Vics and for wet clutches and I had serious slipping.? I wasn't cheaping out or using a 'lesser' version.? Now Amsoil specifically shows the 10-40W for Vics but STILL also shows the old 20-50 that I tried.? Since my dealer is not having problems with the 10-40 and uses it, I may try it and see.? But, the slipping problem I had was NOT related to using inferior spec oil or non-wet clutch rated Amsoil. ?
Shoots that theory down doesn't it? 
Strange that some folks have clutch slipping issues on various brands of oils while other people using the same oil don't have any problems. It's almost like individual machines have individual wants and needs, likes and dislikes.
Ronnie |
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Visionary
Posts: 1290
Ruskin, Fl | Mine has never slipped. Just doesn't engage smooth when it's time to change the oil. |
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Tourer
Posts: 444
Bay of Gigs, WA | So my dealer is 50 miles away, and the knuckleheads at the three auto parts stores in my town don't carry a semi syn oil, though one did, but not anymore and the other had two quarts of Lucas (!) which also doesn't do squat. So I took another threads suggestion and bought a gallon of Rotella 15-40 (I think, it's been a couple days) in the blue jug. But of course, being a million years old, I got on here today and rediscovered I need another half a quart. My question: Has anyone used conventional oil to make up the half quart? I even have some Joe Gibbs oil with zinc in it, if needed, but I got Mobil 1, and a bunch of plain old Quaker State 10-40 and some 5-30. It's really getting on my nerves that unlike yesteryear, there's so many special oils for all my different rigs. Too many decisions, can't keep'em all straight. Sumtimes i feel like going back to Russia where the only oil I need is Vodka so I can't feel the frostbite when I pass out in the snow! |
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Visionary
Posts: 3773
Pittsburgh, PA | so far in my vision i have use 20w40 victory oil, mobil1 10w40 and 20w50, Amsoil 10w40 and 20w50, Rotella T6 5w40, mobil1 5w40 deisel oil. none caused my clutch issues at all, even riding two up..
now i mentioned before that i know of kawasaki's clutch slippage problem and how it took YEARS before people figured it out to be for them the springs were weak from the factory. They used the SAME clutch but just replaced the springs and all the good again, like when the bike was new. im not saying this is the issue with peoples visions that have clutch slippage. but in the past on another forum people blamed brands of oils meanwhile others with the same bike were having NO issues no matter what oil they used (like me). makes you wonder if there is more to the story than just a Oil... |
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Tourer
Posts: 411
Dallas, Texas | The only thing that I could ever figure out why full syn would cause cluth slippage is because the actual oil molecules are smaller, slicker, and clutch plates might need the larger oil molecules in the semi-syns, that aren't as slick. So, for my oil decision, since I don't rack up the miles that some do, I change my oil twice a year. Summer's get full syn Mobil1 V-Twin or Aimsoil, and the winter gets a semi-syn like Castrol, Motul, etc., but all are 20W/50. In my thought proceses, though they may be right or wrong, I felt like this keeps a balance for the wet cluth, and temp control for the summer months, here in Texas. IMHO |
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Tourer
Posts: 411
Dallas, Texas | rainryder - 2011-05-03 1:19 PM
So my dealer is 50 miles away, and the knuckleheads at the three auto parts stores in my town don't carry a semi syn oil, though one did, but not anymore and the other had two quarts of Lucas (!) which also doesn't do squat. So I took another threads suggestion and bought a gallon of Rotella 15-40 (I think, it's been a couple days) in the blue jug. But of course, being a million years old, I got on here today and rediscovered I need another half a quart. My question: Has anyone used conventional oil to make up the half quart? I even have some Joe Gibbs oil with zinc in it, if needed, but I got Mobil 1, and a bunch of plain old Quaker State 10-40 and some 5-30. It's really getting on my nerves that unlike yesteryear, there's so many special oils for all my different rigs. Too many decisions, can't keep'em all straight. Sumtimes i feel like going back to Russia where the only oil I need is Vodka so I can't feel the frostbite when I pass out in the snow!
Do what I do...order your oil through the internet. Cheaper, usually no tax, depending upon where the Supplier is, and deivered to your door. |
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Visionary
Posts: 3006
San Antonio, TX | I changed my oil on Sunday. 22500 miles.
(OilChange22500.jpg)
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Visionary
Posts: 4278
| I wounder how many have done a burn out or power shifter or have a clutch out of adjustment???
I have run Amsoil in all my bike and even that primary chain bike. Never had a problem with any thing. In the vision I run "motorcycle" Amsoil 10/40 and no problems.
I can do one hell of a burn out on the vision where you all most can't see me.
I do know if you keep switching oil's your going to have problems.
Even Barnett the most popular clutch manufacture says Amsoil is just fine.
Stay with one brand of motorcycle oil. |
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Tourer
Posts: 411
Dallas, Texas | john frey - 2011-05-03 5:47 PM
I do know if you keep switching oil's your going to have problems.
Stay with one brand of motorcycle oil.
There is no research out there that backs this up. As long as the oil has the JASO MA rating, it won't do any harm. |
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Mobil 1 V-Twin Oil
