Lucas informed me he would be running a little late ahead of time so that was no problem. He showed up, I gave him a rundown on what's been going on with my car, and he ran a test. He gave detailed explanations and made sure I understood what he was doing. After the problem was diagnosed, he went take another call, but came back a few hours later to finish the job! I'm extremely happy with his service and my car is running better than ever! Thanks Lucas!