CNG vs Petrol – Mileage, Cost, Pros Cons (2026 Full Comparison Guide)

🔍 CNG vs Petrol — Quick Overview

CategoryCNG CarPetrol Car Mileage20–32 km/kg14–20 km/l Running Cost₹2–₹3 per km₹7–₹9 per km Fuel Price₹73–₹90/kg₹105–₹115/litre Engine PowerLowHigh Purchase CostHigher (CNG kit)Lower

⛽ 1. Petrol Car Detailed Explanation (2026)

Petrol engines India में सबसे popular हैं क्योंकि: Smooth power delivery Low engine sound Better pickup Lower maintenance cost 2026 Petrol Price in India Average petrol price: ₹105–₹115 per litre Petrol Mileage (2026) Small hatchbacks: 15–18 km/l Sedans: 14–17 km/l SUVs: 11–15 km/l

🟢 2. CNG Car Detailed Explanation (2026)

CNG, petrol se kaafi economical fuel hai aur India में इसकी demand तेज़ी से बढ़ रही है। CNG Fuel Price Average price: ₹73–₹90 per kg CNG Mileage (2026) Small hatchbacks: 24–30 km/kg Sedans: 22–26 km/kg Taxis: 28–32 km/kg 👉 Real-world में CNG car, petrol ka half running cost deti है।

💸 Running Cost Comparison (Per KM)

Petrol Running Cost Petrol rate ₹110/litre & avg mileage 15 km/l Running Cost = ₹110 / 15 = ₹7.3 per km CNG Running Cost CNG rate ₹85/kg & avg mileage 25 km/kg Running Cost = ₹85 / 25 = ₹3.4 per km ✔ Final Comparison CNG is approx 50–60% cheaper than Petrol.

📅 Yearly Cost Comparison (12,000 km/year)

Fuel TypeCost per kmYearly Fuel Cost Petrol₹7.3₹87,600 CNG₹3.4₹40,800 Yearly savings with CNG = ₹46,800 5 साल में saving: ₹2.3 lakh+