Hey guys, I just bought a beautfil 2005 f350 6.0 4x4 crew cab, it has 90k on it, I have paper work proving it has been "bullet proofed", just looking for advice as I am new to the diesel world, tuners, exhaust, start ups, if I'm supposed to let it.cool down before shutting it down, egr delete, how to get the best mpg, just advice tips and tricks