diesel guys

I mostly run red in mine (stay's on farm) I have an 04 and never had any trouble with it .It's chiped at about 450 horse right now,The red has alot more lubrication in it ,I think thats why it runs so good, also have 5 inch exhaust and k&n filter. If i do run road fuel i put about half quart of oil in fuel.About every other tank.