4 ms·

I'm confused; how does that work?

• imtringued 10y ago
  high performance, fuel efficiency, low NO2 emissions pick two. (this is controlled by software which means they can sell the same engine that differs in performance and fuel consumption)
• enraged_camel 10y ago
  I took it as sarcasm...
  • dingo_bat 10y ago
    It's not. It has something to do with the catalytic converter needing some amount of unburnt fuel to work properly. But the Volkswagen engines are so efficient that they burn the fuel too efficiently. So the catalytic converter is unable to perform it's function.
• benjohnson 10y ago
  With current technology diesel engines have to run less efficiently to ensure more deisrable gases being produced.