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Assuming there's no metal in the oil when I take it out (in case I don't have access to the forums tomorrow) what else do you think it could be?
Also should I just use a synthetic 10W-40? I haven't had any issues with the the oil my mechanic put in during the spring even when I took ride in 100 degree weather. I mostly ride during the night, so high heat isn't usually an issue for me.
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