Kia Sonet Petrol Or Diesel? Mileage & Running Cost Comparison
If you’re wondering whether you should buy the Kia Sonet petrol or diesel then this article will help you come to a conclusion. Here, we’ll take the latest ex-showroom prices of the Sonet and look at the price difference. Based on the current petrol and diesel prices, we’ll calculate the kilometres you need to drive the car to recover the higher upfront cost. This should help you decide which engine option of the Sonet will work best for you and save you money in the long run. Let’s start with the difference in their ex-showroom prices.

Kia Sonet Petrol Vs Diesel - Price Comparison
Let’s look at the latest ex-showroom prices of the Kia Sonet petrol and diesel to see what extra cost you’re paying for the Sonet diesel over the Sonet petrol.
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For the Kia Sonet diesel manual, you’re paying between Rs. 1.5 lakh and Rs. 1.76 lakh more than the petrol.
Kia Sonet Petrol Vs Diesel - Running Cost Calculation - February 2023
Now, let’s compare the per kilometre fuel cost you’ll incur with both the engine options. For this, we’ll use the latest petrol and diesel prices in Delhi and the official mileage figures as a baseline.
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At the current fuel prices, the Kia Sonet petrol manual will cost you Rs. 1.54 more than the Kia Sonet diesel manual for every kilometre you drive.
Kilometres To Breakeven With Kia Sonet Diesel
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Depending on the variant, you’ll have to cover 97,644 to 1.15 lakh km with the Kia Sonet diesel manual to recover the extra price you pay upfront over the Sonet petrol.
Should You Buy Kia Sonet Petrol Or Diesel?
Compared to the Sonet 1.2L normal petrol, the Sonet turbo diesel will save you about Rs. 1.54 for every kilometre you drive. But, the price difference of approximately Rs. 1.50 lakh to Rs. 1.76 lakh is somewhat justified considering the higher performance of the diesel engine. It also has a turbocharger and intercooler, which add to the manufacturing costs. However, you’ll still need to cover about 98,000km to 1,15,000km to recover the higher upfront costs.
From a cost perspective alone, the Sonet diesel doesn't make for a sensible upgrade over the Sonet normal petrol. However, this diesel engine is more suitable for highway driving than the 1.2L normal petrol engine. Considering the performance advantages, we believe you can buy the Sonet diesel if you intend to drive the car for about 1 lakh kilometres or more.
You can use our Fuel Cost Calculator to see how much any petrol, diesel or CNG car will cost to run based on the latest fuel price in your city.
How about sonet diesel AUTOMATIC vs petrol DCT ? Which is suitable for 60% city 40% outside city drives?