Indian auto industry offers several car models powered by engines running on petrol, diesel, CNG and LPG. Mostly, Indian buyers choose between petrol and diesel fuelled vehicles, as CNG or LPG fuels reduce the life of the vehicle. As far as the decision between petrol and diesel fuel is concerned, it depends on the requirements of the driver. Petrol driven cars offer a better performance in comparison with diesel guzzling vehicles. On the contrary, the diesel engines are more fuel efficient and economical in comparison.

Which powertrain is more eco-friendly, diesel or petrol?

Petrol and diesel engines are said to release five harmful emissions, namely Carbon Dioxide (CO2), Carbon Monoxide (CO), Nitrogen Oxides (NOX), Hydrocarbons and Particulates. However, diesel engines emit lower levels of the three of these as compared to petrol powertrains and, thus, are more eco-friendly. In a study conducted by WHO, it was found that the risk impact involved in diesel exhaust fumes is similar to that of smoking tobacco. Moreover, the emissions of diesel vehicles can also cause lung cancer. However, diesel is subsidised in India, which attracts a large number of car buyers towards diesel-fuelled models, irrespective of the fact that they are more expensive than petrol-powered cars. 

Which engine is more efficient and powerful, petrol or diesel?

Petrol motors are considered more efficient than diesel ones, since they are more refined. The diesel engines cannot burn the fuel completely on their own and, therefore, do not generate as much output per litre when compared to petrol engines. However, the torque producing capacity of diesel powertrains is better than the petrol ones.

Why are diesel cars more expensive than petrol vehicles?

Production of petrol engines is a hassle-free procedure and they are simple to design as well. Such engines do not need to compress the fuel in order to combust the same. On the contrary, diesel motors require a sophisticated procedure of manufacturing. Because of this, diesel-run cars are more expensive than their petrol counterparts. These engines emit fewer pollutants but have lower performance when compared against the petrol ones. Besides, diesel powertrains demands more maintenance, which increases the running cost of the car.

What are the advantages of petrol cars?

Petrol cars are easy to maintain and have decent acceleration, when evaluated against diesel-run cars. From a manufacturer’s point of view, the production cost of petrol engines is relatively cheaper than diesel’s and, therefore, petrol cars are cheaper in the country. Besides, the petrol engines are light in weight and offer a smooth, noiseless drive.

Which car will be a better option for normal city driving, petrol or diesel?

Diesel can be better option if the individual needs good outputs on manual and automatic transmissions, with a decent fuel economy on long distance trips. However, petrol cars can be considered if the individuals do not drive a lot on the highway and want an enjoyable, noise free driving experience. If they want to balance the cost between petrol and diesel car, the trade-off with diesel car comes only when they drive around a constant 10000-12000 km each year for a minimum of 2-3 years.

Petrol Cars in India