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Old 06-24-2008, 05:58 PM   #2
silverboxter
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Join Date: Sep 2006
Location: so cal
Posts: 202
i guess you have to take a couple of things under consideration. do you drive mostly on the freeway or in traffic? do you drive your box hard? i do "modest" driving...all on the freeway. i change my oil every 5k miles.
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