Diesels typically have good fuel economy, but hot on the heels of the Volkswagen affair, Australia is set to tighten the rules for diesel car emissions - which will put a dent in engine performance.
Computers control much of an engine’s performance these days. And it’s surprisingly easy to tweak the software to bypass emissions controls, as done by Volkswagen.
It’s likely that many people knew Volkswagen was cheating on emissions tests, including the engineers who built the ‘defeat device’. But why did no-one at the car maker blow the whistle?
Volkswagen’s emissions cheat didn’t just anger owners and regulators; the cost to human health from violating air quality rules exceeds US$100 million.
Current clean diesel technology is more than capable of meeting tough air quality rules while still delivering excellent fuel performance. Biofuels could make it even cleaner.
Volkswagen’s cheating allowed its vehicles to pass rigorous emissions testing, giving customers maximum driving performance at the cost of the environment and our health.
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