Partha
•3hHi, I want to buy a large SUV (XUV, Scorpio, Safari) under ₹20 lakh, but I am concerned about petrol mileage. My driving is 40–50 km per day (city + highway), and every 3–4 months I take a 500 km trip. Should I buy a diesel car, and if yes, will it have any impact on the DPF?

Autocar India
Your 40–50 km daily running, plus periodic 500 km trips, is ideal for a diesel. These engines need consistent use and occasional highway driving to stay healthy, and you are already doing both. Issues with BS6 diesels usually arise only when the car is used for very short city runs or constant crawling traffic without ever getting a proper stretch.
The DPF needs heat to clean itself, which happens during steady driving at moderate speeds or higher RPM. Short trips and low speed driving lead to soot build-up, but your usage naturally allows the system to regenerate. It also makes sense to choose diesel in cars like the Mahindra Scorpio N, XUV700 or Tata Safari, as the petrol versions are not very fuel-efficient.

Mahindra Scorpio N
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Posted on: 22 Apr 2026
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