CJ
C Jayaprakash
•4wMy monthly commute is 1,200 km in Bengaluru city, with occasional long trips. Which is better: a diesel automatic or a petrol automatic?
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Autocar India
A diesel-automatic car will be more fuel efficient than a petrol-automatic, so your monthly fuel bills will be lower. However, diesel cars are much more expensive than a similar petrol car, hence, you have to factor the initial purchase premium too - you will need to drive more to break-even a higher premium, and only once you cross that point will you benefit from the diesel's lower fuel costs.
Some diesel engines need you to drive the car on highways at regular intervals to de-clog the Diesel Particulate Filter (DPF) and clear the soot and carbon buildup due to low-speed city drives.
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Posted on: 2 Mar 2026
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