Had a battery fail which had been put in in Minnesota at a Valvoline so I checked locally to see if it was still covered under warranty. I spoke to Tyler who looked my account up while I was on the phone and found that my battery was covered, but that Valvoline no longer stocked that battery. He assured me they could replace it with a different one, but it would have to be ordered in which would take a couple of days. No problem for me and saved me a couple of hundred dollars.  He later called me to let me know when it was in. I then met Tyler when I came in to have it replaced and get my oil changed. He was just as organized, personable and efficient as he'd been on the phone. There are a lot fewer Valvoline's in AZ than in MN, so it is so nice that one is somewhat conveniently located to me and supplies the same exceptional customer service and friendliness. Even more, the owner of the Valvoline called me himself, as a random customer service check, and was also exceptionally nice and caring.  It's been more than six months, but my experience as Valvoline remains the best customer service experience I have had in the 2.5 years I have been in Phoenix.  That one person, Tyler, took control of my issue and handled it flawlessly from beginning to end over the course of less than a week seems to be a rare thing in AZ (much more common in the Midwest - so I am still adjusting expectations) and I remain so impressed, that as a client, it was all handled with minimum effort, follow-up or inconvenience on my part, that I wanted to write this review in the hope you can have a great customer service experience as well!