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Iron Butt
Posts: 619
Southeast Iowa | Amsoil, 20w50 (because I think it's quieter than the 10w40), 5000 mile intervals, used Amsoil in 4 Victory's (2005 TC with Big Bore Kit, 2004 Kingpin, 2008 Vision with cams, 2010 Cross Roads) I don't ride as hard as some but I ride hard enough to slip a clutch if it's destined to. I have never noticed any slip on any of my bikes. |
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Tourer
Posts: 423
northwest florida | I am thinking of using the new Castrol V-Twin Semi 20/50W at my next change. Full Synths seem to cause clutch slip issues later down the road.
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don't use the synth made for cars. |
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Visionary
Posts: 3773
Pittsburgh, PA | So how is Mobil 1 for passenger cars different from Mobil 1 for motorcycles?
First, let's be clear about Mobil 1's overall benefits compared to those of conventional motor oils, whether for passenger cars or motorcycles
It's a little hard to generalize about the difference between Mobil 1 passenger-car motor oils and Mobil 1 motorcycle oils. That's because not all viscosities of Mobil 1 passenger-car oils have the same levels of zinc and phosphorus, and there are even greater differences among the three Mobil 1 motorcycle oils. In general, Mobil 1 motorcycle oils have:
Additive packages balanced differently for motorcycle engine and transmission operation. For passenger vehicles, fuel economy and emission system protection are higher priorities. These require low phosphorus systems and the use of friction modifiers. Motorcycle oils do not require friction modifiers for fuel economy and for better clutch friction less/no friction modifier is optimum. Motorcycle oils allow the use of higher levels of antiwear additives such as ZDDP (phosphorous).
What about Mobil 1 V-Twin oil? How is that different from Mobil 1 for passenger cars?
Mobil 1 V-Twin oil is designed for air-cooled, large-displacement bikes. Because of their design, these engines can generate very high localized oil temperatures and high overall bulk-oil temperatures.
As you know, a typical air-cooled V-twin's rear cylinder gets a lot hotter than the front cylinder ? it's a matter of airflow. When it's hot out and you're stuck in traffic, the oil temperature in your bike climbs rapidly. Above about 250?F, conventional motor oil is going to break down. Mobil 1 V-Twin synthetic oil is good to above 300?F
the reason i copied and pasted this was. so people do go to a oil makers website and read the FAQ.. thats all... no biggie.. |
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Tourer
Posts: 411
Dallas, Texas | At my last change, I did switch to Mobil1 V-Twin, but with potential clutch slip issue on full synths, I think that I will find a semi-syn. |
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Visionary
Posts: 3773
Pittsburgh, PA | iluvink - 2010-05-24 10:45 AM
At my last change, I did switch to Mobil1 V-Twin, but with potential clutch slip issue on full synths, I think that I will find a semi-syn.
So are you switching to semi synth because your clutch IS slipping? Or Just because your worried about it slipping?
What's happening right now with the oil in your engine?
I just started using mobil1 motorcycle oil. I only have 700 miles on the oil. But so far my clutch is having no issues with the oil at all an that's with 2 up riding |
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Tourer
Posts: 411
Dallas, Texas | Don't have it now. But I do realize that with time and oil changes, the Vic semi that was in there, will eventually be completely gone. I don't think that the clutch slip is immediate. On my VTX, it had begun after about 4 or 5 changes. At the time, I didn't realize why. I thought it was a mechanical problem. Looking back, it makes sense now. I was using Amsoil.
Edited by iluvink 2010-05-24 11:54 AM
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Visionary
Posts: 3773
Pittsburgh, PA | iluvink - 2010-05-24 11:52 AM
Don't have it now. But I do realize that with time and oil changes, the Vic semi that was in there, will eventually be completely gone. I don't think that the clutch slip is immediate. On my VTX, it had begun after about 4 or 5 changes. At the time, I didn't realize why. I thought it was a mechanical problem. Looking back, it makes sense now. I was using Amsoil.[/
On your vtx when u stopped using amsoil did the clutch stop slipping. I ask because on some Kawasaki Vulcan models they had Weak clutch springs. All these clutches were slipping and everyone instantly though it was oil.. until people put new or stronger springs while they reused the same Clutch then all was good.. |
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Tourer
Posts: 411
Dallas, Texas | Arkainzeye - 2010-05-24 12:06 PM
iluvink - 2010-05-24 11:52 AM
Don't have it now. But I do realize that with time and oil changes, the Vic semi that was in there, will eventually be completely gone. I don't think that the clutch slip is immediate. On my VTX, it had begun after about 4 or 5 changes. At the time, I didn't realize why. I thought it was a mechanical problem. Looking back, it makes sense now. I was using Amsoil.[/
On your vtx when u stopped using amsoil did the clutch stop slipping. I ask because on some Kawasaki Vulcan models they had Weak clutch springs. All these clutches were slipping and everyone instantly though it was oil.. until people put new or stronger springs while they reused the same Clutch then all was good..
Well, I traded it for the Vision, so it is hard to say. But I do recall on the VTX boards, that anyone who had these issues were full synth users. It is one of those things that you don't realize, until you look back.
On a side note... have you notice that their are now several oils that come in liter bottles, rather than quarts? Interesting. |
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Visionary
Posts: 3773
Pittsburgh, PA | 1 US liquid quart = 0.946352946 litres
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Visionary
Posts: 3773
Pittsburgh, PA | Arkainzeye - 2010-05-24 1:52 PM
1 US liquid quart = 0.946352946 litres
i wish we used the metric system. the rest of the world does. i like how accurate the metric system is.. a lot of nuts/bolts on the vision is metric.. 10mm etc even the drain plug is metric I think? Most of my tools are metric. That?s from owning kaw;s and Honda?s . seems like every this sae is rounded up or down? Quart, inch, etc. |
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Amsoil Oil Change Intervals
