When did DEF become required ?
Thinking of upgrading to a DP. I want to avoid having to deal with DEF. What year models did it become a requirement ?
Forum Discussion
I would be quite surprised if the cost of DEF (particularly if purchased at the pump) would not be more than off-set by the better fuel mileage.
Same as gasoline cars when the catalytic converter came out in 1975.
The DPF and DEF allow the engine to be run dirtier/more power and let the equipment downstream clean it up.
Same as gasoline cars when the catalytic converter came out in 1975.
The DPF and DEF allow the engine to be run dirtier/more power and let the equipment downstream clean it up.
