car oil for bikes? - Kawasaki Versys Forum
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post #1 of 25 (permalink) Old 05-15-2010, 05:13 PM Thread Starter
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car oil for bikes?

I have read a lot about synthetic oil use for Versys but there's something I would like to have clear... I read this:
Basically any automotive oil will work as long as it does not have the energy saving logo on the bottle. The friction modifiers they add to make it "energy saving" don't work well with the wet clutch most bikes have.

What do you think about this "clutch" issue? Is it good or not to use a regular synthetic car oil in a bike?
Thanks!
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post #2 of 25 (permalink) Old 05-15-2010, 05:19 PM
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Only engine oils of up to W-30 viscosity can be energy conserving rated. Friction modifiers which are not wet clutch compatible are still found in some automotive W-40 and higher viscosity oils. Motorcycle specific oils are JASO MA certified for high friction applications, as recommended by Kawasaki.
From Castrol; "Note: The low friction characteristics of Castrol Edge 0W-40 make it unsuitable for most motorcycles that incorporate wet clutches in combined engine and transmission systems. Castrol’s prime recommendation for this application is Castrol R4 Superbike."

"Castrol does not recommend using automotive oils in motorcycles. In 1996, the American Petroleum Institute (API) upgraded the performance standards of automotive oil from SG to SJ (currently SM). This upgrade impacted the friction modifiers and zinc and phosphorus levels, to address the fuel economy, catalytic converter and pollution issues of passenger car owners. For motorcycles, the additional friction modifiers can affect wet clutch performance, and motorcycle engines appreciate a higher level of the anti-wear ingredients of zinc and phosphorus. We have formulated our line of Castrol Motorcycle oils to be API SG. This allows us to optimize the formula specifically for motorcycles without being constrained by the specification demands for passenger car engines, which our passenger car oil must meet. All Castrol Motorcycle oils have low volatility to reduce the effects of oil evaporation, and they can be up to 50% lower than many API SL/SJ passenger car engine oils. API SJ engine oils have a minimal shear stability requirement; therefore, some types may lose their viscosity more quickly when used in a motorcycle, due to the stresses of these bike engines."

Shell's Rotella T6 synthetic 5W-40 and Rotella T 15W40 is now JASO MA rated and is avalable for less than other motorcycle oils.
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post #3 of 25 (permalink) Old 05-15-2010, 05:45 PM Thread Starter
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Hmmm... so those friction modifiers (I asume they reduce friction inside the engine) are not good for wet clutches we found in our bikes, Am I right???
I was thinking to add one of those products that protects your engine if oil drains out, like Militec... Do you think it will affect badly to the wet clutch?
This is an interesting and very technical discussion.
Thank you Invader.
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post #4 of 25 (permalink) Old 05-15-2010, 07:06 PM
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the way i see it is... They make motorcycle oil, because its not the same as car oil. I mean sure, you can feed a cow corn... But it'll be healthier on grass.
i'm sure you can use whatever oil you feel like in the V, but if its not made for it then don't excpect it to do it best.
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post #5 of 25 (permalink) Old 05-15-2010, 08:11 PM
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I wouldn't. what is the point to try and save a buck? literally that's about all you would save.

besides the Versys takes a WHOLE 2 Quarts with filter.

doesn't everyone read the Owners Manuel?
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post #6 of 25 (permalink) Old 05-15-2010, 09:50 PM
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I wouldn't. what is the point to try and save a buck? literally that's about all you would save.

besides the Versys takes a WHOLE 2 Quarts with filter.

doesn't everyone read the Owners Manuel?

LOL would that be the same owners manual that says do an oil change every 7500 miles


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post #7 of 25 (permalink) Old 05-15-2010, 09:54 PM
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...besides the Versys takes a WHOLE 2 Quarts with filter.

doesn't everyone read the Owners Manuel?
Make sure you check the site glass... Despite what the manual says, mine takes about 2.3 quarts...
.

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post #8 of 25 (permalink) Old 05-15-2010, 10:04 PM
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LOL would that be the same owners manual that says do an oil change every 7500 miles


Todd
Which makes you laugh out loud because.... why, exactly?

Jon
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post #9 of 25 (permalink) Old 05-15-2010, 10:28 PM
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You want to fill the oil to between high and low lines on the glass windows. If you put too much oil, it will overflow to your air filter area

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post #10 of 25 (permalink) Old 05-15-2010, 10:54 PM
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I presume the question gets asked if you can use your car engine oils on your bike is because most people have more than one car and have oils stored for the other vehicles and like to keep it simple and save costs. Oil is still a pretty cheap in comparison to a lot of other maintenance and upgrades that go on, IMHO just get bike specific oil and change out according to manual and do the filter at same time and you can't go wrong. Can't say i agree with manual on freq of plug changes or maybe the truth is i do not like to remove the fuel tank.
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post #11 of 25 (permalink) Old 05-16-2010, 01:16 AM
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Another oil thread????

"When It Rains, Get Wet"
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post #12 of 25 (permalink) Old 05-16-2010, 01:38 AM
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come antman325 oil threads are what lubricates the forum
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post #13 of 25 (permalink) Old 05-16-2010, 01:51 AM
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Oil goes around engine like blood circulated around our body and heart...

Let's talk about BLOOD... I love oil thread...

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post #14 of 25 (permalink) Old 05-16-2010, 02:27 AM
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I know guys who use car oil on their bikes. They say it is not an issue and no problems.
MC oil with JASO rating MA is what I'll put in.

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post #15 of 25 (permalink) Old 05-16-2010, 03:12 AM
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Cant see it being a problem I think oil is hype. I use it in my BMW ,thundercat and previous Moto Guzzy but would stick to m/cycle oil.(I had a supply) with my new purchase for warrenty reasons.
The concerns are clutch and g/box.
The early Brit cars had engine and g/box using the same oil.
As long as its not as said energy saving should be o/k, car oils are a heigher spec than motorcycle oils and they need to meet the demands of new cars that rev much heigher than before. My Harley recomends the use of Diesel car oil if no harley oil is available.

search the Wed thers a site about it showing a fire blade with 200000miles on car oils
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post #16 of 25 (permalink) Old 05-16-2010, 08:58 AM
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Another oil thread????
Amen, too many.

AMA EAA STN
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post #17 of 25 (permalink) Old 05-16-2010, 09:59 AM
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Been using CAR Mobil1 oil in ALL my bikes for years!

As for "energy conserving"... I used M1 10w-30 CAR oil in my 100+ HP Bandit for years with nary a problem, and in fact, it shifted MUCH better on that oil. I use M1 20w-50 in the "V" and my KLR.

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post #18 of 25 (permalink) Old 05-16-2010, 12:22 PM
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well if thats the case with oil lets just put a car tire on there too.

im sure youll get way more miles out of it than your moto tire
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post #19 of 25 (permalink) Old 05-16-2010, 12:28 PM
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I think the harley riders have already done that, been there and bought the tee shirt
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post #20 of 25 (permalink) Old 05-16-2010, 01:10 PM
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Sweet
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