I am looking to buy a used truck and reactivate my authority. I am looking at 2 different Kenworth w900’s. The first is a 1997 with a Detroit 12.7 and the second is a 2013 with a Cummins ISX15. The 2013 will probably need an apu which it doesn’t currently have. Outside of chassis and drivetrain repair or maintenance which engine would you choose? This truck will be used for regional flatbed work. Thanks in advance
