Diesel engines also have a higher thermal efficiency than petrol engines, meaning that they waste less energy as heat. This makes them more fuel-efficient and environmentally friendly.
However, diesel engines also produce more particulate matter and nitrogen oxides (NOx) than petrol engines. These pollutants can cause respiratory problems and contribute to smog.
In some countries, diesel vehicles are subject to stricter emissions regulations than petrol vehicles.
Overall, diesel is more eco-friendly than petrol in terms of carbon dioxide emissions and fuel efficiency. However, diesel engines produce more particulate matter and NOx emissions, which can be harmful to human health and the environment.
