Petrol vs Diesel vs CNG — Which Fuel Is Cheapest in Pakistan 2026?
With petrol at Rs 381.78/litre, diesel at Rs 380.78/litre, and CNG at Rs 75–104/kg depending on your region, Pakistani drivers face a genuinely important question: which fuel is cheapest to run on a per-kilometre basis? The answer depends on your car, your city, and how you drive. This guide does the complete cost-per-km math.
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Current Fuel Prices in Pakistan — June 2026
| Fuel Type | Price | Unit | Available |
|---|---|---|---|
| Petrol (MS-92) | Rs 381.78 | per litre | All cities |
| High-Speed Diesel (HSD) | Rs 380.78 | per litre | All cities |
| CNG — Region I (KPK, Balochistan, Islamabad, Rawalpindi) | Rs 75.82 | per kg | Intermittent |
| CNG — Region II (Punjab ex-Potohar, Sindh/Karachi) | Rs 104.07 | per kg | Intermittent |
| LPG (Cylinder) | Rs 308.76 | per kg | Most cities |
| Electric (home charging est.) | Rs 50–80 | per kWh | Urban only |
Cost Per Kilometre — The Real Comparison
Pump price alone doesn’t tell the story. A CNG car uses more kg per km than a petrol car uses litres per km (because CNG has lower energy density per volume). And diesel cars typically travel farther per unit of fuel. Let’s calculate for real vehicles driven in Pakistan.
Formula Used:
Cost per km = Fuel Price ÷ Vehicle Efficiency
(Efficiency in km/litre for petrol/diesel, or km/kg for CNG)
| Vehicle | Fuel | Efficiency | Cost/km (PKR) | Monthly Cost (50km/day) |
|---|---|---|---|---|
| Suzuki Alto | Petrol | 20 km/L | Rs 19.09 | Rs 24,817 |
| Suzuki Alto (CNG) | CNG R-II | 22 km/kg | Rs 4.73 | Rs 6,149 |
| Honda City 1.2 | Petrol | 14 km/L | Rs 27.27 | Rs 35,451 |
| Honda City (CNG) | CNG R-II | 16 km/kg | Rs 6.50 | Rs 8,450 |
| Toyota Corolla 1.6 | Petrol | 12 km/L | Rs 31.82 | Rs 41,361 |
| Toyota Corolla (CNG) | CNG R-II | 14 km/kg | Rs 7.43 | Rs 9,659 |
| Toyota Fortuner 2.7 (Petrol) | Petrol | 9 km/L | Rs 42.42 | Rs 55,148 |
| Toyota Fortuner 2.8 (Diesel) | HSD Diesel | 12 km/L | Rs 31.73 | Rs 41,249 |
| Toyota Hilux Revo (Diesel) | HSD Diesel | 13 km/L | Rs 29.29 | Rs 38,077 |
Monthly cost based on 50 km/day × 26 working days. CNG Region II rate (Rs 104.07/kg) used. Real-world city mileage figures used (not manufacturer claims).
CNG in Pakistan — Cities, Availability, and Regions
CNG (Compressed Natural Gas) in Pakistan is divided into two pricing regions:
Region I (Cheaper)
Covers: Khyber Pakhtunkhwa, Balochistan, Islamabad, Rawalpindi, Gujar Khan, and the Potohar region. Current price: Rs 75.82 per kg.
Region II (More Expensive)
Covers: Punjab (excluding Potohar), Sindh (including Karachi), and major cities like Lahore, Faisalabad, Multan, Hyderabad, and Karachi. Current price: Rs 104.07 per kg.
CNG Availability Issues
CNG stations in Pakistan have faced significant supply challenges:
- Winter shutdowns: CNG is often cut off for transport sectors during winter months (Nov–Feb) to prioritize household heating gas
- Load shedding of gas: Irregular gas pressure affects many stations, especially in Punjab
- Alternate-day supply: In some cities, CNG stations operate on alternate days to manage supply
- Kit quality: Poor-quality CNG kits can cause misfires and engine damage
Which Cars Can Run on Which Fuel?
| Fuel | Cars in Pakistan | Key Point |
|---|---|---|
| Petrol | Alto, Cultus, Yaris, City, Civic, Corolla, BRV, Sportage, Tucson, Stonic | Most common, widely available |
| Diesel (HSD) | Fortuner 2.8D, Hilux Revo, Land Cruiser, Isuzu D-Max, Prado 3.0D | Better mileage but higher maintenance |
| CNG (aftermarket kit) | Any petrol car with a CNG conversion kit fitted | Kit costs Rs 50,000–120,000 |
| Hybrid (Petrol+Electric) | Toyota Corolla Cross HEV, Toyota Yaris HEV, Honda Vezel, Chery Tiggo 8H | 30–40% better mileage than pure petrol |
| Electric | BYD Seal, BYD Dolphin, Chery EQ7, DFSK Glory 580 EV, Seres 3 | No fuel cost, range limitations |
CNG Conversion — Is It Worth It?
A CNG conversion kit for a typical 1000–1300cc car costs Rs 55,000–85,000 for a good-quality Type-4 cylinder kit. For a 1600cc or larger car, budget Rs 80,000–120,000.
Breakeven calculation (Honda City example — Lahore, CNG Region II):
- Petrol cost per month (50km/day): Rs 35,451
- CNG cost per month (50km/day): Rs 8,450
- Monthly saving: Rs 27,001
- Kit cost (mid-range): Rs 80,000
- Breakeven: 80,000 ÷ 27,001 = ~3 months
The math is compelling — IF CNG supply is reliable in your city. In Karachi and Lahore, supply is generally available 5–6 days per week. In Peshawar and Islamabad (Region I), supply is more consistent AND cheaper at Rs 75.82/kg.
Hybrid vs Petrol — Cost per Kilometre
| Car | Type | City Mileage | Rs/km |
|---|---|---|---|
| Toyota Corolla 1.6 Altis | Petrol | 12 km/L | Rs 31.82 |
| Toyota Corolla Cross HEV | Hybrid | 18–22 km/L | Rs 17–21 |
| Daihatsu Mira (Japan import) | Hybrid | 24–28 km/L | Rs 13–16 |
| BYD Dolphin (EV) | Electric | 6–7 km/kWh | Rs 8–13 |
Verdict — Which Fuel Should You Choose?
- For lowest cost per km: CNG (Region I: Rs 3.45/km, Region II: Rs 4.73–7.43/km) — if supply is reliable in your city
- For daily petrol car users: Convert to CNG — payback under 4 months in most cases
- For SUV/truck buyers: Diesel Fortuner or Hilux is 25–33% cheaper per km vs petrol version
- For new car buyers wanting lowest fuel cost: A Japan-import hybrid (Aqua, Mira, Vitz Hybrid) offers exceptional Rs 13–18/km running cost
- For long-term lowest cost: Electric vehicle — Rs 8–13/km once charged at home
Use the Carr.pk fuel price tool to get the latest prices before doing your own calculations. Also see our CNG conversion guide for Pakistan 2026 and our EV vs Petrol running cost calculator.
Frequently Asked Questions
Is CNG cheaper than petrol in Pakistan?
Yes, significantly. In Lahore or Karachi (Region II), CNG costs Rs 104.07/kg vs petrol at Rs 381.78/litre. A CNG-converted car gets 14–22 km/kg vs 12–20 km/L on petrol. The per-km cost of CNG is typically 4–5x cheaper than petrol at current rates.
Which cars use diesel in Pakistan?
Diesel-powered cars in Pakistan include the Toyota Fortuner 2.8D, Toyota Hilux Revo 2.8D, Land Cruiser Prado 3.0D, Isuzu D-Max, and various commercial vehicles. Most passenger cars (Alto, Cultus, Corolla, City, Civic) run on petrol.
What is the CNG price in Karachi 2026?
Karachi falls under CNG Region II. The current price is Rs 104.07 per kg. Note: CNG prices were deregulated by the Ministry of Petroleum, so individual stations may charge slightly different rates. Check the station before filling.
Is diesel better than petrol for an SUV in Pakistan?
For high-mileage SUV users, yes. The diesel Fortuner 2.8D gets ~12 km/L vs ~9 km/L for the petrol 2.7. At current prices (diesel Rs 380.78 vs petrol Rs 381.78), the diesel saves ~25% in fuel costs. Over 50 km/day, this means Rs 14,000/month in savings — easily justifying the Rs 400,000+ price premium within 2–3 years.
How much does a CNG kit cost in Pakistan?
A basic sequential CNG kit for a 1000–1300cc car costs Rs 55,000–85,000. For 1600cc+ cars, budget Rs 80,000–120,000. Quality Italian or German-brand kits (BRC, Lovato, Tartarini) with Type-4 cylinders are recommended over cheap Chinese alternatives that can pose safety risks.
