[Cdnhemi]

I also had the wrong oil put in, and when I brought it up to the service manager he grabbed my keys and took it in right away and also put a notice on my car history in case I had a problem with my MDS at a later time. I had put about 200 Kms on the car at that point, after my oil change. He appeared to be quite concerned.

 

[Cdnhemi]

With so much confusion as to which oil to use, it concerns me that the Service Manager or Service Advisor might know the correct oil and list it on the service order, but by the time the car gets to the oil change pit, the guy there might just put in 10w30 or whatever they use on most vehicles. You would have no way to double check on this.

How I found mine was to read the service sheet that you get back at the end of service. I never did ask if the 5W20 oil was more expensive than the 10W30, so if it is then there could be problems with dealers making a buck by charging for the more expensive oil and putting in the cheaper stuff, although I can't see a dealer actually doing it.