Silver — ₹2,32,344/kg▲ 2.89%Gold 24K — ₹15,194/g▲ 1.73%Gold 22K — ₹13,918/g▲ 1.59%Petrol Delhi — ₹102.15/LDiesel Delhi — ₹95.24/LSilver — ₹2,32,344/kg▲ 2.89%Gold 24K — ₹15,194/g▲ 1.73%Gold 22K — ₹13,918/g▲ 1.59%Petrol Delhi — ₹102.15/LDiesel Delhi — ₹95.24/LSilver — ₹2,32,344/kg▲ 2.89%Gold 24K — ₹15,194/g▲ 1.73%Gold 22K — ₹13,918/g▲ 1.59%Petrol Delhi — ₹102.15/LDiesel Delhi — ₹95.24/L

Diesel vs Petrol Car — Which is Cheaper?

Planning to buy a car? Find out how many kilometers you need to drive every year to make a diesel car worth the extra price.

Deciding between petrol and diesel car variants is one of the most critical decisions for Indian car buyers. Diesel variants typically carry a price premium of ₹1.2 Lakh to ₹2.5 Lakh over equivalent petrol models.

Our Diesel vs Petrol Breakeven Calculator determines the exact driving distance required to recover the higher diesel purchase price and projects your 5-year total cost of ownership (TCO).

Rates for

Diesel₹/LPetrol₹/L

Rates are editable — change the city to load its live prices, or type a rate to run the numbers against your own.

Diesel vs Petrol Car

Car prices

Diesel variant price₹12 Lakh

Petrol variant price₹10 Lakh

Mileage

Diesel mileage20km/L

Petrol mileage15km/L

Your usage

Annual kilometres15,000km

Years of ownership5years

Diesel becomes cheaper after1,01,678km driven

5-yr diesel₹15.36 Lakh

5-yr petrol₹14.84 Lakh

Petrol saves you over 5 years₹52,475

Excludes maintenance, insurance, and resale value differences. Both fuels costed at today's rates in India (typical rate).

Guide & Complete Information — Diesel vs Petrol Car — Which is Cheaper?

Calculating the Diesel Breakeven Distance

The breakeven point represents the mileage where fuel savings offset the extra upfront cost of a diesel car:

Fuel Savings Per Km = (Petrol Price ÷ Petrol Mileage) - (Diesel Price ÷ Diesel Mileage)

Breakeven Kilometres = Price Difference Between Diesel & Petrol Variant ÷ Fuel Savings Per Km

Diesel vs Petrol Decision Framework

Monthly Driving Distance	Recommended Choice	Rationale
Under 1,000 km / month	Petrol	Takes 6+ years to recover diesel price premium; lower maintenance costs.
1,000 – 1,500 km / month	Petrol / CNG	Borderline breakeven; CNG or Turbo Petrol offers better overall economics.
Above 1,500 km / month	Diesel	Recovers price premium within 2.5–3.5 years; superior highway torque and efficiency.

Important Considerations for BS6 Diesel Cars

10-Year Registration Cap in Delhi-NCR: Diesel vehicles cannot be driven in Delhi-NCR past 10 years, whereas petrol vehicles are permitted for 15 years.
DPF Maintenance: Low-speed city driving can clog BS6 DPF filters, requiring periodic highway runs.

Frequently Asked Questions2 Questions

QWhen does a diesel car become cheaper than petrol?

A diesel car becomes cheaper overall once your total accumulated kilometres exceed the breakeven point (typically between 35,000 km and 55,000 km driven).

QDo diesel cars have higher maintenance costs?

Yes, diesel engine oil, fuel filters, injectors, and turbocharger components are generally 15-25% costlier to service compared to naturally aspirated petrol engines.

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