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Everything Dirt Bike
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<blockquote data-quote="cleonard" data-source="post: 21949" data-attributes="member: 21"><p>I have been running the Rotella 15W-40 for years now. This is what is known as a heavy duty diesel oil. They resist the viscosity breakdown that happens with 10W-40 automotive oils. With the new formulation that Shell went to about two years ago they actually went and got the JASO-MA wet clutch motorcycle certification.</p><p></p><p>The bottom line is that if you change it often enough even 10W-40 automotive oil is fine. Just stay away form the "energy conserving" labeled oils. Contrary to popular belief most "energy conserving" labeled oil does not have any damaging friction modifiers, but a few do. It's more about the viscosity. Even if an oil has friction modifiers it can't get the "energy conserving" label unless the hot viscosity is no more than 30.</p><p></p><p>The thing that attracted me to the Rotella was the price and the good reputation it has among motorcyclists. It's about $11/gal at WalMart.</p><p></p><p>I have found that different oils can have a big effect on transmission shifting. If your tranny is not working the way you would like give a different oil a try.</p></blockquote><p></p>
[QUOTE="cleonard, post: 21949, member: 21"] I have been running the Rotella 15W-40 for years now. This is what is known as a heavy duty diesel oil. They resist the viscosity breakdown that happens with 10W-40 automotive oils. With the new formulation that Shell went to about two years ago they actually went and got the JASO-MA wet clutch motorcycle certification. The bottom line is that if you change it often enough even 10W-40 automotive oil is fine. Just stay away form the "energy conserving" labeled oils. Contrary to popular belief most "energy conserving" labeled oil does not have any damaging friction modifiers, but a few do. It's more about the viscosity. Even if an oil has friction modifiers it can't get the "energy conserving" label unless the hot viscosity is no more than 30. The thing that attracted me to the Rotella was the price and the good reputation it has among motorcyclists. It's about $11/gal at WalMart. I have found that different oils can have a big effect on transmission shifting. If your tranny is not working the way you would like give a different oil a try. [/QUOTE]
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