On my 2011 Infiniti QX56 Les Schwab put regular oil in my synthetic engine what does it do to my car
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Les Schwab for two oil changes put regular oil in my synthetic engine on the third oil change they never did an oil change in for 2000 miles I didn’t find this out so I changed my oil with the proper oil recommended for my car now it’s acting funny
How long has your 2011 INFINITI QX56 had this problem?
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Look elsewhere for the source of the “acting funny” concern. There are no “synthetic engines”.. Good luck !