Hi Team, I am from Bangalore, and I am planning to buy Mahindra Thar Roxx AX7L Diesel AT 4x4 in October 2026, hoping to get festive offers. My annual running is around 12,000 km, with 70% of it on highways. If I use my car only on weekends in the city and occasionally (once every two months) for long highway drives, will that be enough to avoid DPF-related issues? With the upcoming Isobutanol fuel blending, do I need to be concerned? Are Mahindra diesel cars compliant with this fuel?
With 12,000km a year and 70% highway driving, you are actually the ideal diesel owner. The Thar Roxx AX7L Diesel AT 4x4 is a great choice for your usage pattern, and you should not be worried about DPF issues. The DPF system needs sustained higher exhaust temperatures to regenerate, and your regular highway runs will take care of that naturally. Even if you are only using the car on weekends in the city, as long as you are doing occasional long highway drives, the system will regenerate as intended. The real DPF problems tend to occur with cars that are used exclusively for short, low-speed city trips with no highway running.
On the isobutanol front, there is nothing to worry about. Isobutanol is being considered as a diesel blend, but it is not a major policy direction like E20 petrol. Mahindra diesel engines are designed to handle the fuel blends available in the market, and there is no evidence to suggest that isobutanol blends will cause any issues. The bigger concern with diesel ownership is always usage pattern, not fuel blends.
The Thar Roxx is a very capable and enjoyable SUV, but it is worth being aware of its limitations. It is not the most practical family car, and the ride can be a bit firm on broken roads. But for your usage pattern, it is a solid choice. If you are looking for a more practical alternative with similar diesel capability, the Mahindra XUV 7XO Diesel AT is worth considering. It offers a more comfortable ride, better practicality and the same strong diesel engine. But if you want the Thar Roxx for its character and off-road capability, your usage pattern supports that decision.
Mahindra XUV 7XO
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Posted on: 17 Jul 2026
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