On average, you can expect to pay £0.75 per litre for petrol in El Salvador. Keep in mind that this is last week’s national average price and petrol prices may vary across the country. According to our data, El Salvador has neither the most expensive nor the cheapest petrol prices in the world. Egypt currently has the least expensive at £0.24 per litre, while Hong Kong has the most expensive at £2.51 per litre. Keep in mind that petrol prices change regularly and may be different during your travel dates.