naturist wrote:
MargaretB wrote:
You mention mileage being important for environmental reasons, yet you are considering a diesel powered vehicle. Are you aware that a diesel engine emits far more pollutants into the atmosphere than a comparable gasoline engine?
According to what we've read up on, urea-injection diesel systems emit H20 vapor and a small amount of NOx.
In 1950, that was true. It is not true today. Modern diesels, equipped with a particulate filter and urea injection emit less pollutants that gas engines, as well as less CO2.
It was also true in 2000, so you don't have to go back to the 50's. Unleaded gasoline burning engines have traditionally been much kinder to the environment than pre-DPF and Urea equipped diesels. NOx output is still likely to be higher in a diesel than a gas vehicle. The line is definitely blurred at this point, and any modern vehicle is significantly cleaner than any ICE vehicle in from the 70's.