Valvoline Instant Oil Change Recommending unnecessary work which is a blatant rip-off to the consumer ! Canton Michigan

Last month I had synthetic oil changes done on two of my vehicles. I use synthetic oil on all of my vehicles. Synthetic oil lasts 5000- 8000 miles. Other shops including my local Chevrolet dealership place a new sticker with  a new recommended mileage change of  5000- 8000 based on the type of synthetic oil used. Synthetic oil comes out clean even after 5000+ miles! I noticed that Valvoline Instant Oil Change put the recommended service date for both of my vehicles at 3000 miles which is unnecessary and unneeded! On 8/6/20 I called them and waited patiently for ten minutes to speak to a service representative.

When I spoke to the  rep, I asked her  why they put the recommended oil change at 3000 miles since synthetic lasts 5-8000 miles. she stated that " This is our policy" I said that other shops do not do this and that this is unecessary work! She asked for a description of my vehicle which I provided. She was unable to give me any more information. I then asked to speak to the store manager. Again, I was put on hold. I waited to speak to the manager, when I spoke to the store manager , she was unable to give me a good reason for this unecessary work.

During the course of my conversation with both employees I was calm and collected and did not raise my voice, I was just trying to get a valid answer. Subsequently without answering my question the store manager, Hung Up on Me without any explanation or basic courtesy!  I hope that othe people can learn from this experience because , I have had this type of experience previously with this shop where they recommended unnecessary work which I declined. After this experience I will not return. Hope that I can save people some money!