Petrol and diesel prices are an important part of household and travel budgets, particularly for people who commute daily or are planning a long road journey. Before heading to a fuel station, motorists may want to check the latest rates applicable in their city, as prices can differ considerably from one location to another.

Fuel prices across India are revised regularly, with oil marketing companies publishing updated petrol and diesel rates at 6 am. For September 4, 2026, motorists in major cities can check the latest city-wise rates before filling their tanks.

The cost of petrol and diesel varies across states and cities because the final retail price is influenced by several factors, including taxes, crude oil costs, currency movements and other components of the fuel pricing system.

Petrol Price Today: September 4, 2026

Here are the petrol prices listed for some major Indian cities:

Among the cities listed above, Hyderabad has one of the highest petrol prices at ₹115.69 per litre, while Port Blair is considerably cheaper at ₹88.66 per litre.

The difference highlights how local taxation and other pricing components can result in motorists paying different amounts for the same fuel depending on where they live.

Diesel Price Today: Check City-Wise Rates

Diesel prices also vary significantly across the country. Here are the rates listed for September 4:

According to these rates, diesel is priced at ₹95.20 per litre in Delhi, while Mumbai motorists are paying ₹97.97 per litre. The price stands at ₹99.82 in Kolkata and ₹99.56 in Chennai.

Hyderabad's diesel rate is higher at ₹103.82 per litre, while Port Blair has the lowest diesel price among the cities included in this list at ₹84.56 per litre.

Why Do Petrol and Diesel Prices Differ Across India?

Consumers often wonder why petrol or diesel costs more in one city than another. There is no single factor responsible for determining the amount displayed at a fuel station.

The final retail price is influenced by international as well as domestic factors. Here are some of the major elements that can affect fuel prices.

1. International Crude Oil Prices

Crude oil is the primary raw material used to produce petrol and diesel. India imports a substantial share of the crude oil it consumes, making global oil-market movements particularly important.

When international crude oil becomes more expensive, the cost of sourcing it can rise. Sustained changes in global crude prices can therefore put pressure on domestic fuel pricing.

Similarly, a decline in crude oil prices may reduce some cost pressure, although retail petrol and diesel prices are also influenced by several other factors.

2. Rupee-Dollar Exchange Rate

The exchange rate between the Indian rupee and the US dollar is another important factor.

International crude oil transactions are largely denominated in US dollars. This means that if the rupee weakens against the dollar, Indian companies may have to spend more rupees to purchase the same amount of crude oil.

Currency fluctuations can therefore influence the overall cost of importing crude into the country.

3. Central and State Taxes

Taxes form another important component of the retail price consumers pay.

Fuel pricing can include central levies as well as taxes imposed by individual state governments. State-level taxation, including VAT where applicable, is one of the reasons petrol and diesel prices can vary between locations.

As tax structures are not identical across states, motorists travelling from one state to another may notice a significant difference in fuel prices.

Why Fuel Prices Matter Beyond Car and Bike Owners

Changes in diesel and petrol rates can have a broader economic impact. Diesel is widely used in commercial transportation, including trucks and other vehicles that move goods across the country.

Higher transportation costs can affect businesses involved in logistics, agriculture, manufacturing and retail. Persistent increases in fuel expenses may eventually add to the cost of transporting everyday products.

For households, petrol prices directly affect people who commute by car or motorcycle, particularly those travelling long distances every day.

Fuel Rates Are Updated at 6 AM

Petrol and diesel rates are published daily at 6 am under the prevailing fuel-pricing mechanism. Motorists should therefore check the latest price applicable in their city rather than relying on an older rate.

Prices can also vary between locations because of local taxes and other applicable charges.

Before starting a long journey, checking petrol and diesel rates can be particularly useful for estimating travel expenses and planning a fuel budget.

What Motorists Should Know

The amount you pay for petrol or diesel is determined by more than movements in global crude oil prices alone. Currency exchange rates, taxation and other pricing components can all influence the final amount charged at the pump.

For September 4, 2026, the city-wise rates show substantial differences across India. Petrol in the listed cities ranges from ₹88.66 per litre in Port Blair to ₹115.69 in Hyderabad, while diesel ranges from ₹84.56 to ₹103.82 per litre.

Consumers should check the latest rate through their fuel provider or oil marketing company's official channels before making decisions based on daily price movements, as local rates are subject to revision.