I have a 03 F250 CC, Short Bed, 6.0L, 4x4. I'm getting really hard cold starts. Sometimes i have to crank it 3 or 4 times to get it start (not always though), it chugs really bad between around 1200-1800 rpms in its final gear only between around 45-60 maybe 65 mph., and when its cold it sometimes doesn't have all of its power when i push the accelerator. From what i've heard and read its a sticky injector. I don't know if its a injector thats completely shot or just sticky. i have no check engine light or anything so cant even diagnose with a reader. Any help would be greatly appreciated. First diesel so excited to have it and from what i've read and heard the 6.0 is very anal about the fluids used in it. What's thinking about trying Rev-X to see if it helps cause of what i read on everyone's forum about it. But would just like a couple of opinions first. Thank You.