2013 is a bit late for an MA failure. Sounds like they've used "oil" rather than correct oil. Not sure if just correcting oil will fix it. The handbook says you can use wrong oil for very limited miles , I recall. My 2011 MA car did a misfire once at 14000 miles as I was following the 18000 mile interval. The oil was low. I got it taken by low loader to dealer Asap without using the engine again. After a service with new oil and filter it was fine until I sold it at 63000 miles. There's a lot of nonsense about the MA unit but if it's abused on an early one it doesn't like it!