I have ordered a New 2500 Laramie 4x4 Quad Cab 6. 7 with the 3. 73 rear end and I have a 1995 Laramie with the 5. 9 in it and it has 400867 miles on it. All I have used in it the last three years is Bio diesel and it makes it run 80% better and I all have a excavatings bussiness and I use it in all my equitment like my 2007 JD Backhoe AND IT RUNS GREAT. But with the new Bluetec System I am just wondering if I can run it in my new 6. 7 . I know alot of poeple don,t have it but I do were I live. Thanks for any help !!