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Analysis of Alfine oils

Old 08-08-22, 06:05 AM
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anga
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Analysis of Alfine oils

Lubricating oil for the 11-speed and 8-speed are different. Did anyone analyse the two for additives? Are they mineral oil based or synthetic?
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Old 08-08-22, 07:09 PM
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Originally Posted by anga View Post
Lubricating oil for the 11-speed and 8-speed are different. Did anyone analyse the two for additives? Are they mineral oil based or synthetic?
The 11-speed oils is synthetic. I've run my Alfine-11 with Royal Purple 75w-140 gear oil (THIS) for 10,600 miles. I use the same oil to dip the gear clusters of two Nexus 8-speed hubs.
The Shimano oil and the Royal Purple have similar viscosities.
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Old 08-09-22, 09:36 AM
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any reason to not just use what is recommended by the manufacturer? Yes more expensive, but less expensive than goofing up a hub with the wrong stuff, and unless there is a fleet of IGH's the cost over time is minimal
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Old 08-10-22, 05:29 AM
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Unavailable here. Shipping + significant duty makes it twice as expensive.
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Old 08-10-22, 07:00 AM
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Do you have a good friend with access to a good analysis lab who'll check the two oils for you for a pizza and beer?

If not, the cost of analyzing the two oils is probably a large multiple of the cost of the right oil, shipping, and duty combined.
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Old 08-11-22, 05:06 AM
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Originally Posted by pdlamb View Post
Do you have a good friend with access to a good analysis lab who'll check the two oils for you for a pizza and beer?
I actually did this several years ago. A friend at the Structural Biology Lab at UIC made magnetic resonance scans on samples of the Shimano oil and the Royal Purple. The scans were similar, but had some different peaks in different places. The problem was that we didn't know what the peaks meant. Magnetic resonance is probably not the right technique for this project, but it was what I had access to.
In the end, they were both gear oils with similar viscosities, and one was about 20% of the cost of the other, and the substitution has apparently worked well.
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