I have a love hate relationship with my 04' 6.0 Powerstroke Ford Excursion. When I had problems with my EGR, Oil Cooler System I did some research on the internet and fund that a company out of Mesa, Az "Bullet Proof Diesel" recommended ATG&DR as one of their installers. I made an appointment and Bill checked it out, he made some recommendations. I didn't need the BPD System and went ahead with what Bill recommended, the repairs were made and now it's a little more love than hate. For those of you that own 6.0's, you know what I mean. I found Bill and his team very professional and knowledgeable and I have complete confidence in them for all my Excursion's service needs, oil changes, injector service, transmission service. Well, they do the whole nine yards. Check them out, your Diesel will thank you.