Reliability of coaches using DEF
I have wanted to upgrade as my Holiday Ambassador is moving toward it's 10th year. How are people doing with the newer coaches using DEF? It's made me wonder if moving back to a gas coach makes more s...
Forum Discussion
DEF has become a huge enabler for the engine manufacturers allowing higher combustion pressures, higher temperatures, and higher outputs (HP/Torque). With DEF they don't have to deal with the emissions side of things as much.
