Which car should you buy-Petrol or Diesel?


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The Biggest Decision in 2020 is still the same: Petrol Car or Diesel Car? We help you decide!


Petrol or Diesel has to be one of the most complex dilemmas for every car buyer but it doesn’t need to be. There are many assumptions when it comes to making this decision, but as always, half knowledge is dangerous. Let the field experts – “the mechanics” guide you with the facts and crucial points when it comes to using a diesel car as against a petrol car.

We’ll start by speaking on some key parameters that majorly impact this decision:

1)     Price

2)     Usage

3)     Mileage

4)     Efficiency

5)     Safety Options

6)     Maintenance

7)     Peer pressure


1.     Price: Earlier diesel would be almost 30% cheaper as compared to petrol per litre but over the years, especially post 2016, the price gap has been reduced drastically recently making diesel just Rs. 0.36 cheaper than petrol in Delhi. That makes it evident that in the near future as well, the price gap between Petrol and Diesel is bound to be small. Thus, a major decision-making factor in favour a diesel car now enjoys lesser weightage.

Further, for cars costing below 10 Lakhs, the showroom price between diesel and petrol models differs in the range of 1 to 1.5 Lakhs widening the gap in the on-road price even more. Although, this depends on the state in which the car is purchased, diesel cars are sold at a 1-4% premium

2.     Usage: It is a fact that diesel engines are more powerful than petrol engines. However, petrol cars tend to give a smoother ride as compared to diesel cars. On the other hand, the harshness, noise, and vibrations despite the engine mounts in diesel-driven cars are much higher than that of a petrol-driven car which is a big reason of concern. Long story short if your usage is more for city driving, a petrol car makes sense from the point of view of ease in clutch motion and shortage of torque which is more than sufficient for city driving. However, if your usage is for frequent long-distance highway driving, a diesel car is better suited giving you the much needed torque for increased power.

3.     Mileage:

Move beyond Kitna Deti Hai! The diesel engine technology puts in more kilometres per litre than a similarly sized petrol motor. While this is one of the major factors for the majority go for a diesel variant, the personal usage on a day to day basis must be taken into consideration. Calculate the daily usage of yours in order to justify the purchase of a diesel car over a petrol car with this basic formula

(No. of kilometres in a year)/ (Fuel Efficiency) * (Difference in cost of petrol over diesel)

Now, compare this value with the upfront cost difference while buying a diesel car. That will be the number of years needed to keep the diesel car to fill the gap

4.     Efficiency: Driving a car today has become a necessity. Along with it come the hazards and you must prepare the car for all contingencies. Why shouldn’t you go for some expert mechanics’ advice by contacting our expert advisors at +91 9930907778 in order to figure out which car gives the least headaches – petrol or diesel? Here, the way of personal handling by the customer makes a lot of difference. Air pressure, oil change, consistent car check-up works well for both diesel and petrol cars. Earlier, diesel quality was poor which used to choke up the engine but that has improved a lot over the years and so has the diesel engine technology.

5.     Safety Features: We cannot stress the importance of safety features in the car enough. In the latest global NCAP 2020 survey, you can find the safest cars to drive in India ranked on different parameters. We strongly advise that the additional money should be invested in buying the higher variant with better safety variants rather than comparing mileage as the first parameter. Both diesel and petrol cars come equipped with many safety features and there is no comparison on this basis.

6.     Maintenance and Resale Value:  The maintenance cost of diesel cars is higher than petrol cars. This is because consumables like engine oil and spares used in diesel vehicles are more expensive.  The resale value of a used diesel car is higher than that of a petrol car. However, the life of a petrol engine is usually longer than a diesel engine. Care Mechanics Online gives you ample information on how to maintain your car.

7.     Peer pressure: One of the biggest reasons to select a particular car model comes from emotional assumptions and ultimately, decisions made by family members and peers which include colleagues and friends. However, in order to make an informed decision, keep an eye on the new updates and take the first-hand experience for a car that meets your requirements the most. You can always contact our expert advisors at +91 9930907778 to make an informed decision.

Well, we have given you a lot to think about! The best approach is to just focus on your most important requirements – based on the above parameters and do not give in to peer pressure. If you go for short distances most of the time in the traffic-filled city, petrol car is the way to go. However, if you need to cover long distances on your sales beat outside the city, diesel will give you more bang for the buck.