Just went through my first motor on my 08 ford 350 6.4. Had 98000 miles on it. Never been tuned. Lucky for me it still had 2000miles left on the power train warranty. Bad thing is ford only gave me 12000 miles on the new motor. Blown head gasket bent push rods cracked piston housing. My question is I hate the regen process I hear that it dumps fuel in your oil is this true.