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11-04-2008, 01:51 PM
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#21 |
  
Drives: 08 3DR 5M Bayou Blue; 09 Fos Join Date: Oct 2008
Location: New Hampshire
Posts: 622
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Just as an example BMW M engines have been failing running our API SL, SM 10W-30. Also Chevrolet (corvette) pulled its mobil1 recommendaion and factory fill last year due to the oil NOT staying in viscosity grade throughout the OC service interval.
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