Hi, I am John M. Burnham . I am the founder and author of PowerStrokeZone.com . I am an automobile engineer. I have a long experience. I work on this line for about 10 years. In this blog I always share automobile related products review and buying guides. I have two more colleagues who regularly share their experiences here. They have the same long experience as me. In fact, this is our job. Delivering accurate information to people. And we love this work. If you have any questions, feel free contact to us .