Triumph Forum: Triumph Rat Motorcycle Forums - View Single Post - Change your oil...brand that is
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post #14 of (permalink) Old 07-26-2011, 11:58 PM
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Marde's Avatar
Join Date: Jun 2006
Location: MA
Posts: 239
I've been running the M1 Racing 4T in my Bonnie since new and also in the Bird. Never any issues. Tomorrow I'll be changing the Bird's oil and trying the Castrol Racing. Let you all know if I notice anything different.

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