What is your question?
·
·
What is your question?
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?
Les Schwab put regular oil in my synthetic engine
Look elsewhere for the source of the “acting funny” concern. There are no “synthetic engines”.. Good luck !