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Old 07-31-2012, 02:07 PM   #2 (permalink)
90 ST
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Join Date: May 2010
Location: Calgary
Posts: 1,861
Drives: 90 and 15 GMC Sierra
Rep Power: 421
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Shouldn't have any problems switching oils in the car, most of the guys on here have at some point in the cars life. i for one changed all but the engine oil to redline at about the same as you're at now. engine oil i started redline before that. other wise if you're already going to be bringing it in for the 60k check, you should be fine.
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