Autocar India
5w

I was planning to buy the Honda Amaze CVT earlier, but due to uncertainty around a higher percentage of ethanol blending, I have decided to go with the Tata Altroz diesel. But now I read that the government is also planning to blend isobutanol in diesel. Should I buy a diesel vehicle or not? Will isobutanol adversely affect diesel engines and affect fuel economy?

Verified
5w

There is no reason to avoid either a petrol or a diesel car purely because of future fuel-blending plans.

Just as modern petrol cars are being engineered to handle higher ethanol blends, any future diesel blend regulations will be accompanied by corresponding changes from vehicle manufacturers. If isobutanol blending is introduced, it will be done in a controlled manner, and vehicles sold in the market will be calibrated accordingly. There is currently no evidence to suggest that such blends would cause adverse effects on modern diesel engines when used within the prescribed limits.

The more important question is whether a diesel suits your usage pattern. If your running is high and includes regular highway trips, the Altroz Diesel remains a compelling option. However, if your usage is predominantly urban, the Honda Amaze CVT is still the more sensible choice. It offers a smoother driving experience, lower complexity and none of the DPF-related concerns associated with modern diesel engines.

Tata Altroz

Tata Altroz

5w

Don't buy a diesel if your primary use is city driving, DPF is a very real problem. Think in terms of an EV, punch EV should be a suitable car.

4w

Honda amaze, such a amazing smoothness and n cluch operation no comparison with other in same segment, Amaze = no tension.

3w

If its hard earned money wait and watch how this fuel destroys cars

3w

If its hard earned money wait and watch

3w

I m planing to buy diesel creata turbo manual..just want to confirm how the engine will perform with isobutlon blending...is this blending safe for the creata engine

3w

Can I buy creta diesel now..Will the engine performance effect with blending of isobutlone

4w

If it is your hatd earned money wait Lets see the damage it causes then take decision

5w

I want to buy Toyota Hyryder G cng what price i sell my Baleno zeta 2023 buy at 10 lakh My monthly drive 12000 20% in city and 80% in Highway

5w

My monthly driving is 2000km mostly on highways ,I currently owngrand i10 and planning to move away to 1.5litre engine ,although i have zeroed to creta diesel but I am confused about future fuel blend regulations and DPF issues. Which car can I go which suits my requirements?

5w

With 2000 km a month usage you should be looking at an EV

5w

@basant_kumar DPF issues will be non existent if you run the car in highways that too almost 2k kms a month. Go for it worry free.

5w

I am planning to buy thar roxx ax7l at d. But bit of confused due to fuel blending. So should i purchase it or wait for some time?

5w

Diesel is better, if blended with isobutanol it will be just 5%

5w

If you like the Thar Roxx and it fits your requirements, I would say go ahead and buy. Currently, fuel-blending concerns are being overthought. The Roxx is E20-compliant, and any move beyond E20 would likely come with minimum 5 years of notice and OEM support. I wouldn't delay a purchase waiting for hypothetical E30/E40 mandates.

5w

@az.1 isobutanol blending is generally not an issue because it doesn’t absorb moisture from air(hygroscopic) + also it’s calorific value is better than ethanol so it’s a much cleaner burner

More questions on similar cars

15h

I'm planning to buy a new 7-seater manual with a budget of around Rs 18 lakh. My current preference order is: Tata Safari Petrol, Mahindra XUV 7XO, Mahindra Scorpio N, and Kia Carens Clavis. My annual running will be around 12,000km, mostly on highways, but the car may remain parked for 3-6 months at a time. I plan to keep it for at least 7-8 years. My biggest dilemma is petrol vs diesel. Petrol is my first preference because of my relatively low running and the long periods when the car will be parked, but I'm concerned about E20 ethanol-blended fuel. On the other hand, these are large and heavy vehicles, so fuel efficiency is also important. I'm considering diesel for its better mileage, but I'm worried about the long-term reliability of the DPF and DEF systems if the car remains unused for several months. What would you recommend?

Verified
10m

Although your annual running of around 12,000km sits on the fence between petrol and diesel, your usage pattern is predominantly highway, which plays to a diesel's strengths. The concern about DPF is understandable, but it's often overstated. DPF issues are far more common in vehicles used almost exclusively for short city trips. Since your driving is mainly on highways, the system will get the opportunity to regenerate properly. As for the car remaining parked for 3-6 months, that's not ideal for either fuel type. Diesel cars require some precautions, such as keeping the tank full and using fresh DEF when the car is put back into regular use. Still, long periods of inactivity are not a reason to avoid diesel altogether.We wouldn't let E20 fuel influence your decision either. Modern E20-compliant engines are designed to run on it, and there is no official roadmap beyond E20. While ethanol can marginally reduce fuel efficiency, it is not a reason to avoid buying a petrol car today.Among your shortlist, we'd place the Mahindra XUV 7XO ahead of the others. It is the most rounded package, offering excellent space, comfort, safety and highway ability.

VehicleMahindra XUV 7XO
21h

I am planning to buy the Tata Tiago EV Creative+ 24 kWh after comparing it with the Tata Punch EV, Tata Nexon EV, and MG Windsor EV. I have to travel around 70 km per day, of which 7-10 km is within the city. What is your review of this? Is it worth buying?

Verified
10h

For a 70km daily commute with only 7-10km of city driving, the Tata Tiago EV Creative+ 24kWh is a sensible and cost-effective choice. The Tiago EV is one of the most affordable EVs on the market, and its 24kWh battery is well suited to your usage pattern. With a daily round trip of 70km, you will be using roughly 30-40% of the battery per day, depending on driving style and AC usage, which means you can comfortably charge at home overnight without range anxiety becoming an issue.The Tiago EV is also compact and easy to manoeuvre, which is useful for the city portion of your commute, and its running costs are significantly lower than petrol or diesel alternatives. Compared to the Punch EV, Nexon EV and MG Windsor, the Tiago EV is the most budget-friendly option in electric cars. The Punch EV offers a higher driving position and more ground clearance, but it comes at a higher price and is not necessary for your usage. The Nexon EV and Windsor EV are larger and more expensive, and their extra space and features are unlikely to justify the additional cost for your daily commute.The only real drawback of the Tiago EV is its relatively small boot and basic interior compared to more expensive EVs, but for a daily commuter car, these are minor compromises. Overall, the Tiago EV Creative+ 24kWh is a practical and financially sound choice for your needs.

VehicleTata Punch EV
VehicleTata Nexon EV
VehicleTata Tiago EV
VehicleMG Windsor

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Posted on: 14 Jun 2026