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techtalk:ref:susp01 [2024/01/20 19:46] hippysmack |
techtalk:ref:susp01 [2024/01/20 19:52] (current) hippysmack [HD Recommendations] |
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| ====== Fork Oil ======= | ====== Fork Oil ======= | ||
| ===== HD Recommendations ===== | ===== HD Recommendations ===== | ||
| - | * The MoCo specifies HD Type B or E (and respective equivalents) fork oil depending on year model. | + | * The MoCo specifies HD Type B or E (and respective equivalents) fork oil depending on year model. \\ Below is some general information gathered by XLForum members. However, the actual data on HD forks oils has never been published or verified by HD. |
| * HD doesn't divulge the highly classified weight of their fork oil. \\ Some say type E is equivalent to 10W, some say it's equivalent to 15W oil or more from other manufacturers. \\ Just keep in mind when changing fork oil, you don't want to mix different used oils together with new oil. \\ Drain and clean all previous oil before installing new oil especially if previous oil is not known. | * HD doesn't divulge the highly classified weight of their fork oil. \\ Some say type E is equivalent to 10W, some say it's equivalent to 15W oil or more from other manufacturers. \\ Just keep in mind when changing fork oil, you don't want to mix different used oils together with new oil. \\ Drain and clean all previous oil before installing new oil especially if previous oil is not known. | ||
| * HD has, however, confirmed that type B (0-10W) fork oil is lighter than Type E (5-20). ((Q&A question 1 http://www.harley-davidson.com/store/fork-oil)) \\ That being said, if you want to stay with HD oils, you can mix B and E for an "X" weight of your choice to tune your forks. \\ All HD fork oils are petroleum based, non-synthetic oils. | * HD has, however, confirmed that type B (0-10W) fork oil is lighter than Type E (5-20). ((Q&A question 1 http://www.harley-davidson.com/store/fork-oil)) \\ That being said, if you want to stay with HD oils, you can mix B and E for an "X" weight of your choice to tune your forks. \\ All HD fork oils are petroleum based, non-synthetic oils. | ||
| * Also, the kinematic viscosity (at 40°C [mm2/s = cSt]) was mentioned on the HD site for Type E. ((Q&A https://www.harley-davidson.com/store/fork-oil-pa-17-9988480--1)) ((link provided by shanneba of the XLFORUM https://www.xlforum.net/forum/forum-functions/sportsterpedia-com-admin/191119-send-a-note-to-sportsterpedia-admin/page10?t=2039687&page=10)) \\ Mid-point -46, minimum- 41.4, maximum- 50.6 \\ (ISO 3448 Viscosity class ISO VG 46, ISO VG 46 = SAE 15) | * Also, the kinematic viscosity (at 40°C [mm2/s = cSt]) was mentioned on the HD site for Type E. ((Q&A https://www.harley-davidson.com/store/fork-oil-pa-17-9988480--1)) ((link provided by shanneba of the XLFORUM https://www.xlforum.net/forum/forum-functions/sportsterpedia-com-admin/191119-send-a-note-to-sportsterpedia-admin/page10?t=2039687&page=10)) \\ Mid-point -46, minimum- 41.4, maximum- 50.6 \\ (ISO 3448 Viscosity class ISO VG 46, ISO VG 46 = SAE 15) | ||
| - | * Additional information provided by Tomcatt of the XLForum (through conversation with tech guys at Red Line Oils) | + | * Additional information provided by Tomcatt of the XLForum (through conversation with tech guys at Red Line Oils) |
| * Harley Davidson type "B" = 34.3cSt@40°C | * Harley Davidson type "B" = 34.3cSt@40°C | ||
| * Harley Davidson type "E" = 39.2cSt@40°C | * Harley Davidson type "E" = 39.2cSt@40°C | ||
