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Old 01-30-2009, 08:16 AM
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lesr
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Join Date: May 2008
Location: Langley BC Canada
Age: 78
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Default Re: Will the wrong oil weight cause damage?

I am no expert on this but I would not think it would be good to have an oil that misses the mark on both the low and top end.
As a minimum I would not try and use the car hard nor go the normal 7,000 miles between oil changes.