In the event that they had indeed used 10w-60, what are the ramifications of this? Can this cause permanent damage/irreversible negative side effects?
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2012 BMW X5 35d (Alpine white/Black - Loaded) - Delivery: 2012/9/17
2013 BMW M5 (Azurite black/Black full merino/Piano trim/20"/Exec./Driver Assist. - Delivery: 2012/11/16 (GONE)
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