Last week got my first diesel. wooo hoooo. It is a 1998 dodge 2500 quad cab long bed 4x4. It has a 12 valve from what I've learned in the last few days with 95k. I did replace fuel filter this past week end and has more power already. Now I'm pumped up and want MORE POWER. Oh sorry I mean extra torque for pullinig my travel trailer. Well going to look throigh some forums and see what I can do.