Here in Los Angeles, we can buy three different types of diesel fuel, and that led me to the question any self-respecting gearhead would ask: Would any of them make my long-term Mercedes Sprinter van ...
For those unfamiliar, a trailer brake controller (TBC) is an electronic gizmo that triggers the electric brakes on a trailer. Most pickups and many jumbo-size SUVs now offer factory-installed TBCs, ...