I had problems with my 6.7 and the emissions.:argh: I had a check engine light come on and took it to the shop and they said egr was plugged up. Well they couldn't get to it till the next day and I had to go to Odessa TX. So I pored two bottles of Diesel Clean with C eaten boost in and did it again next fill up. By the time I made it to Ablien the check engine light went off and The truck came alive! So now I use it every other fill up just to keep the old system cleaned out! :jump:

the stuff does work very well! we use it in the DMAX's at work. people reported very positive points wondering what we did the first time we added. Lol