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Everything Dirt Bike
General Dirt Bike
Fork oil
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<blockquote data-quote="cleonard" data-source="post: 15892" data-attributes="member: 21"><p>Fork oil is really all over the place when it comes to the engineering characteristics. Even simple things like the advertised viscosity can vary widely. A key characteristic is the viscosity index or VI. The VI measures how much the viscosity changes with temperature. A large VI is a good thing. It's amazing how different the VI can be. It can vary by a factor of three or more. In general synthetics are much better than non. There is also a general trend of it cost money to have a good VI.</p><p></p><p>Since shocks get so hot mot shock fluids have a large VI. </p><p></p><p>There is a giant chart with every suspension oil known to man. I'll have to see if I can dig it up.</p></blockquote><p></p>
[QUOTE="cleonard, post: 15892, member: 21"] Fork oil is really all over the place when it comes to the engineering characteristics. Even simple things like the advertised viscosity can vary widely. A key characteristic is the viscosity index or VI. The VI measures how much the viscosity changes with temperature. A large VI is a good thing. It's amazing how different the VI can be. It can vary by a factor of three or more. In general synthetics are much better than non. There is also a general trend of it cost money to have a good VI. Since shocks get so hot mot shock fluids have a large VI. There is a giant chart with every suspension oil known to man. I'll have to see if I can dig it up. [/QUOTE]
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