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Super Moderator
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Do a search on the subject. It's been covered many times. You
can use car oil, but make sure it does not say enegry conserving
anywhere on the package. Sportrider Magazine just did a two
part story on the topic over the last few months. A good car oil
choice is Mobil One Syn 15w50. Remember, the more molly a oil
has it will make your clutch slip.
 

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Track Junkie
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4,774 Posts
I use Mobil One Syn 15w50 and have had no problems at all.
 

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Made You Look !
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:iamwithst

That "motorcycle oil" is just a play for money. As already stated, as long as it is not "energy conserving" you are fine. the mobile 15-50 is good sutff :rock
 

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Action figure sold separately
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12,225 Posts
Rwon said:
Does anyone put regular car motor oil in their bike?
Yes, some people do. I'm not one of them.
 

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Layer-3
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1,962 Posts
Clay said:
NO... Regular car oil is not designed to work for a motorcycles wet clutch..
Let me say, I have 2 left hands, so please forgive me if I sound totally stupid...

But, how would motor oil affect the clutch of a bike? I would assume it is similar to an Car Engine and Transmission, both are different "parts" and do not share "oil" and stuff like that. :confused:
 

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Motorcycle junky
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210 Posts
extrakt0r said:
Let me say, I have 2 left hands, so please forgive me if I sound totally stupid...

But, how would motor oil affect the clutch of a bike? I would assume it is similar to an Car Engine and Transmission, both are different "parts" and do not share "oil" and stuff like that. :confused:
Mobil one synth is O.K. for bikes.. but regular car engine oils are not. A motorcycle engine shares the oil to all working parts of a bike. Clutch, trans, engine etc. Car engine oil is for a car engine. A cars clutch is also DRY friction. The trans fluid in a car trans is for gears, not the clutch. Putting regular car oil in a bike can cause the clutch to slip. There are many good articles on the subject if you look hard enough. Castrol syntec is also O.K. to use, but is not a true synth oil. Its a blend. Stick with a good quality motorcycle synth oil like MOTUL, Golden Spectro, etc.
 

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Formley known as slutty
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extrakt0r said:
Let me say, I have 2 left hands, so please forgive me if I sound totally stupid...

But, how would motor oil affect the clutch of a bike? I would assume it is similar to an Car Engine and Transmission, both are different "parts" and do not share "oil" and stuff like that. :confused:
a bikes clutch is inside the transmission and shares the same oil and the clutch is wet (oil) soaked.

a cars clutch is seperated from the transmission by a flywheel and typically are dry (no oil in contact with clutch)


by the way I use a brand of autozone oil. the have it in a big black tank in the back. says USED on the side...:crash
 

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Layer-3
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Clay said:
Mobil one synth is O.K. for bikes.. but regular car engine oils are not. A motorcycle engine shares the oil to all working parts of a bike. Clutch, trans, engine etc. Car engine oil is for a car engine. A cars clutch is also DRY friction. The trans fluid in a car trans is for gears, not the clutch. Putting regular car oil in a bike can cause the clutch to slip. There are many good articles on the subject if you look hard enough. Castrol syntec is also O.K. to use, but is not a true synth oil. Its a blend. Stick with a good quality motorcycle synth oil like MOTUL, Golden Spectro, etc.

It sure does sound weird to me, but like I said I have two left hands....And being the wuss that I am, I have always taken all my vehicles to dealerships, even for oil changes. They do, I don't ask. ;)
 

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Powered By YamahaR1 Technology
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so what would you say would be the a good oil to use.. i know synthetic oils could get expensive.. would you say they are generally better then regular oil? now i am talking ONLY motorcycle oil.. what would you say a really good one would be?

ok.. let me say this... which is the middle prices synthetic oil and what would the most expensive be?

my bike is still new and i havent has the break in done on it.. and i would like to use completey synthetic for every oil change but i dont want to kill my self with the price either...

please you OIL GURU'S , MASTERS OF THE BLACK GOLD! please guide me in my journey.. lol.. thanx.. IXI
 

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Liquid Silver `03
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627 Posts
Not all Mobil 1 is safe to use. If it says "energy conserving" on the round label on the back it has friction modifiers known as Moly in it. That is the ingredient that affects wet cluthches. The only Mobil 1 that doesn't have high Moly comtent is the 15w50. In the auto grade that is.

Do a search on this topic!!!! It will save everyone alot of responses.
My two cents? Use Mobil 1 MX4T ($8), Amsoil bike specific ($6), or buy the red cap Mobil 1 Auto oil ($5). Don't think of it as too much expense, it is you engine, clutch, and tranny you're protecting. Beside I think Yamalube is about $4 a quart anyway.
 

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Action figure sold separately
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JimmyD said:
Not all Mobil 1 is safe to use. If it says "energy conserving" on the round label on the back it has friction modifiers known as Moly in it. That is the ingredient that affects wet cluthches. The only Mobil 1 that doesn't have high Moly comtent is the 15w50. In the auto grade that is.

Do a search on this topic!!!! It will save everyone alot of responses.
My two cents? Use Mobil 1 MX4T ($8), Amsoil bike specific ($6), or buy the red cap Mobil 1 Auto oil ($5). Don't think of it as too much expense, it is you engine, clutch, and tranny you're protecting. Beside I think Yamalube is about $4 a quart anyway.
Hey Jimmy, that price is a bit high for the Amsoil. I think I pay $4.55 per qt.
 

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Beeeeeer!
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Automotive oil w/o the friction modifiers will work in a bike. It's just not suggested. If you do I would change the oil every 1500 and filter every 3000. but your changing the oil twice as often which doubles the cost so to save alot of hassel just use the full synthetic. Which should be Ok after the first couple thousand miles. 6 of one and half dozen of the other.
 

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Liquid Silver `03
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627 Posts
Eyespy said:
Hey Jimmy, that price is a bit high for the Amsoil. I think I pay $4.55 per qt.
I think you're right, I forget the exact amount. I buy it 8 quarts at a time. But 4 to 5 dollars sounds right. In my opinion it's the best way to go. Based on the huge test of all the different oils it beat everybody including Mobil 1 in most categories. I hesitate to say that though, because Mobil 1 was right up there, it's just more expensive and didn't do better than Amsoil. So for me, the choice is clear. Amsoil from here on out. I was a big Mobil 1 user for years, though.
 

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Registered
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I use car oil. I agree that moly or energy conserving is bad. I do track days and change it after every track weekend. All you will hear on this is a bunch of unproven, unsubstatiated sales hype that people are just repeating. Amsoil is great, but all oil gets poluted with gas and combustion by-products and acids over time. So my take is that fresh oil is good oil.

Car oil won't make your clutch slip just because it's car oil. It's the moly.

People choose oil based on marketing and biased magazine comparisons. They don't have proof, so I take it all as just hearsay.
 
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