When my car gave out I spoke to Mike and he made everything go by easily, I was afraid of dealing with the aftermarket warranty company I got from Carmax but everything ended up being taken care of. Dropped my car off and picked it up without issues, I was informed when they were going to look at it, what they found and that the warranty will cover it and when it was ready. I will be using Tri-Valley again when I need repairs and significant maintenance work.