I paid a total of $4,000 to do pretty extensive work on my f450, and as part of that service purchased and installed two motorcraft (ford brand) batteries. They come with a 36 month free exchange warranty.
Two years later or or both of the batteries appeared to fail, so I pulled them out of the truck and took them down to marysville ford to test them and replace if needed.
I was told that they had the records showing the work on my truck, but that they would not honor the warranty because "they didn't know what truck these batteries came from", and suggested that I re-install the dead batteries, and then have the truck towed down to their dealership, where they would then check the batteries and replace them.
I called a towtruck company and they quoted me $180 to tow my truck to the dealer. So the dealer wants me to spend $180 so that I can replace batteries that aren't worth that much.
Bad service. Will not honor their own warranties. I paid full boat retail for ford brand parts and service, and did not get anything for the cash I spent. I would stay away from this dealer, particularly for warranty issues. They do not honor them.