Mobile 1 10W 40 - Not Impressed - Victory Forums - Victory Motorcycle Forum
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post #1 of 51 (permalink) Old 07-17-2013, 08:48 AM Thread Starter
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Default Mobile 1 10W 40 - Not Impressed

A few weeks and 2K miles ago I switched from Vic oil to Mobile 1 10W 40 full synthetic and while I've not experienced any clutch slippage, the bike is running hotter than it ever has. I've ridden in as hot or hotter weather prior to the change. I've experimented with the lower fairing opening. I'm now even feeling heat from under the seat whereas before it was just engine heat on the lower legs. Previously when under way, very little heat was noticeable but such is no longer the case. I almost went with Rotella but thought I'd give this stuff a try. It won't be going in again at the next change.
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post #2 of 51 (permalink) Old 07-17-2013, 10:23 AM
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This is because pure synthetic doesn't dissipate heat the way regular dino oil does. I'm fairly sure this is why Victory recommends a blend. That way there is the benefits of both types.

It's also why Harley, with their hot running motors, don't recommend pure synth although lots of people run it. Probably fine in the cooler months. Not so much during the Summer.
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post #3 of 51 (permalink) Old 07-17-2013, 10:30 AM
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Quote:
Originally Posted by BBob View Post
This is because pure synthetic doesn't dissipate heat the way regular dino oil does. I'm fairly sure this is why Victory recommends a blend. That way there is the benefits of both types.

It's also why Harley, with their hot running motors, don't recommend pure synth although lots of people run it. Probably fine in the cooler months. Not so much during the Summer.
Thank you BBob, that is good information !

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post #4 of 51 (permalink) Old 07-17-2013, 11:42 AM
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Did you run Mobil 1 for motorcycles or did you use Mobil 1 that is for cars?

You can search the net and find that Syn oil will give your motor less heat and longer life it doesn't break down like normal oil.

With out measuring device you can't tell if the bike is running hotter by the seat of your pants. Keep in mind the temp of the days has a lot to do with what heat your feeling.

All so your sitting on a engine that parodies heat what do you expect from it? cold air

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post #5 of 51 (permalink) Old 07-17-2013, 11:57 AM Thread Starter
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Did you run Mobil 1 for motorcycles or did you use Mobil 1 that is for cars?

You can search the net and find that Syn oil will give your motor less heat and longer life it doesn't break down like normal oil.

With out measuring device you can't tell if the bike is running hotter by the seat of your pants. Keep in mind the temp of the days has a lot to do with what heat your feeling.

All so your sitting on a engine that parodies heat what do you expect from it? cold air
The oil I used is a motorcycle oil. By the seat of my pants is exactly how I will determine if my bike is running hotter. We are not talking about power. My complaint isn't that the 106 c.i. engine under me produces heat (that's expected), it's that the amount of heat being produced (felt) has increased with the oil I'm currently using. At 76 degrees this morning, I felt more heat than I used to at temps a good 10 degrees warmer. This past weekend while riding in mid 80's I felt more heat than in the past when it was in the mid 90's. Sitting still and getting the amount of heat I am would be one thing but to continue to feel the same amount when at highway speeds is something new. And I have tried the fairing flaps in several positions with no positive effect.

Maybe going back to a synthetic blend will be better, I'll find out eventually.
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post #6 of 51 (permalink) Old 07-17-2013, 12:24 PM
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Harley doesn't recommend synthetic oil?
http://www.harley-davidson.com/en_US...cd=Vanity_syn3
Don't new Harleys come from the factory with Syn3 in all three holes?

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post #7 of 51 (permalink) Old 07-17-2013, 12:32 PM
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Harley doesn't recommend synthetic oil?
http://www.harley-davidson.com/en_US...cd=Vanity_syn3
Don't new Harleys come from the factory with Syn3 in all three holes?
the se bikes have had syn from the factory for years

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post #8 of 51 (permalink) Old 07-17-2013, 01:01 PM
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I think mine runs cooler with synthetic oil.. ???


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post #9 of 51 (permalink) Old 07-17-2013, 05:09 PM
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Quote:
Originally Posted by half_crazy View Post
Harley doesn't recommend synthetic oil?
http://www.harley-davidson.com/en_US...cd=Vanity_syn3
Don't new Harleys come from the factory with Syn3 in all three holes?
Screaming Eagles come with Syn in all holes. They say the Trans and Primary can go twenty thousand miles before changing.

But Vic can only go. Never mind

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post #10 of 51 (permalink) Old 07-19-2013, 05:25 PM
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Oil selection is more of an art than a science. Each machine is different as are riders and envrionments. Now, I don't have a Victory yet, but on the ST that I ride, there are many that swear synthetic is the devil. I've been using it for years (car blends at that) with no problems. However, I tend to put faith into people's observations. I'd say if you're feeling more heat, than that sythetic for you in your envrionment IS running hotter. However, it may be different for different machines (even with the same bike) in different places with different riders.

Many people swear by Rotella. It's pretty cheap out here being in a farm community and I may give it a whirl. Of course switching oils I've heard can cause problems too. So, maybe I'd be causing more problems than anything else.

Thinking outside the box, if your engine is warmer do you think the 10w40 is actually carrying more heat out of your engine or not transferring enough?

It's probably my only trepidation still left on Victory is the lack of liquid cooling. (I'm pro water cooling ). My wife's XL was quite toasty during the summer.
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