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FJR Motorcycle Forums
Technical & Mechanical Problems
Fork Oil
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<blockquote data-quote="RaYzerman19" data-source="post: 1067869" data-attributes="member: 18388"><p>Fork oil (or most oils) won't thin out with age. It will when hot, naturally, maybe on a real spirited ride might you get it hot enough, but you won't notice. It's formulated for hydraulics and for a wide range of temperatures. In the forks, it will get dark as it absorbs aluminum oxide from the internals, but for the most part the system is kinda sealed. You might get small amount of moisture past the seals over time which will tend to add a slight milkiness, but all minor normal stuff..... The stock FJR damping adjustments should be enough with 5W for anything the normal rider would need. Not that damping adjustments can compensate for every feel, but if you've got them cranked down to the low end and think you want a little stiffer damping then you can switch to a higher viscosity. Unless you're an experienced racer, you're not going to feel a lot of difference between 5W and 7W..... not sure I would have gone to 2.5W, sounds kinda thin to me. If anything I would have gone 5 or 7 to start.</p></blockquote><p></p>
[QUOTE="RaYzerman19, post: 1067869, member: 18388"] Fork oil (or most oils) won't thin out with age. It will when hot, naturally, maybe on a real spirited ride might you get it hot enough, but you won't notice. It's formulated for hydraulics and for a wide range of temperatures. In the forks, it will get dark as it absorbs aluminum oxide from the internals, but for the most part the system is kinda sealed. You might get small amount of moisture past the seals over time which will tend to add a slight milkiness, but all minor normal stuff..... The stock FJR damping adjustments should be enough with 5W for anything the normal rider would need. Not that damping adjustments can compensate for every feel, but if you've got them cranked down to the low end and think you want a little stiffer damping then you can switch to a higher viscosity. Unless you're an experienced racer, you're not going to feel a lot of difference between 5W and 7W..... not sure I would have gone to 2.5W, sounds kinda thin to me. If anything I would have gone 5 or 7 to start. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Fork Oil
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