There is no way it will ever be cost neutral. The initial cost, higher fuel and maintenance costs will never allow you to recover the COI. Unless you need a diesel truck it is not a good value regardless of the juvenile descriptors provided. The cost penalty will continue to grow in the future due to emission requirements of diesel engines and better efficiency of large gasoline engines. Now a midsized diesel engine might get closer but the truck makers seem to be caught up in this mindless power war that went beyond crazy many years ago.