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  1. Indian Motorcycle Tech Q & A
    Yes, I know it's an oil thread, but this one is a bit different. I find myself with 3 quarts of Redline 10w40 and 3 of Amsoil 20w40. I know people have had good results with both of these oils, but I'm wondering if there would be negative results in mixing them together. I don't really want...
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