Fuel in Bulgaria - Types, Prices and Tips for Fuel-Efficient Driving

If you are planning a road trip through the country, the topic of fuel is essential. Petrol station prices vary across different cities and regions, and the choice of fuel type depends on your vehicle and the specific route you are taking.

Whether you are driving your own car or a rental, understanding the main fuel types, current prices, and fuel-saving driving techniques will save you real money on the road. That is exactly why we have put together everything you need to know in this article.

Types of Fuel Available in Bulgaria

Every petrol station in the country offers at least two main fuel types. Different fuels have different chemical compositions, different combustion efficiency, and different prices per litre. The choice is not arbitrary – it depends entirely on the engine of the specific vehicle.

Petrol cars require petrol, diesel cars require diesel, and vehicles fitted with a gas conversion system can run on LPG. It is important never to confuse the fuel types, as filling up with the wrong one can cause serious engine damage.

In addition to these three mainstream options, larger cities also offer CNG (compressed natural gas), suitable for specialist vehicles. CNG station coverage is limited, particularly outside main road arteries and smaller towns.

If you are driving an unfamiliar car model, it is sensible to check the fuel type in advance. The label on the fuel cap or the owner's manual will give you a clear answer in seconds.

Hybrid vehicles run on petrol or diesel and do not require any special infrastructure. They are becoming increasingly popular in the country and represent a convenient middle ground between conventional and fully electric cars.

Petrol and Diesel – The Main Options

A95 petrol is the standard fuel for most passenger cars. The higher-grade A98 offers better combustion for high-performance engines but comes at a higher price. The choice between the two depends on the manufacturer's recommendations.

Diesel is preferred for longer routes. Diesel engines offer better fuel efficiency at a constant motorway speed compared to petrol engines under the same driving conditions.

In urban conditions, however, the difference in consumption between the two fuel types is smaller. Diesel engines reach their optimum efficiency at constant revs, and the frequent stopping and starting of city driving does not play to their strengths.

When choosing a car for predominantly city driving, the petrol variant is fully competitive, especially for shorter distances. Petrol hybrid vehicles are particularly well suited for mixed urban and out-of-town use.

Winter additives in diesel are important during the colder months. Standard fuel can thicken at low temperatures and make starting difficult. Most petrol stations automatically switch to a winter formula during the appropriate period of the year.

Not all diesel brands are equal in quality. The additives blended into the fuel affect injector cleanliness and overall long-term engine performance.

For standard naturally aspirated petrol engines, A95 is perfectly sufficient. Filling up with the more expensive A98 in such engines offers no measurable benefit and does not justify the price difference.

LPG – The Economical Alternative

Propane-butane, known as LPG or simply gas, is a significantly cheaper fuel compared to petrol and diesel. Bulgaria has a long tradition of LPG conversions, particularly among drivers with a high annual mileage.

LPG vehicles require a dedicated gas conversion system installed by a certified technician. The system allows the engine to run on both petrol and gas, with switching between the two fuels typically happening automatically once the engine reaches a certain operating temperature.

A disadvantage of LPG is the poorer coverage of gas stations in smaller settlements. Before a longer journey it is advisable to check the availability of stations along your route in advance. Coverage is good along the main motorways and in regional centres.

LPG consumption in litres is slightly higher than petrol, as the fuel has a lower energy density. However, since its price is approximately half that of petrol, the overall saving is significant over a larger mileage.

The payback period for an LPG conversion system depends on the vehicle's annual mileage. With intensive use it is typically recovered within two to three years. At lower mileage the financial case needs to be calculated individually.

Beyond the savings on fuel costs, gas engines emit less carbon dioxide than petrol engines during combustion. This also makes them a more environmentally friendly option under comparable conditions of use.

Current Fuel Prices in Bulgaria

Fuel prices in the country change regularly and depend on international crude oil markets and tax policy. Keeping track of current price levels is especially useful when planning longer journeys.

As of March 2026, A95 petrol is available at prices ranging from €1.12 to €1.38 per litre across different locations in the country. Diesel is in a similar range – from €1.16 to €1.42 per litre – while LPG is considerably cheaper, from €0.52 to €0.65 per litre.

The price difference between individual petrol stations can be noticeable. Large chain stations with an extensive network of sites generally maintain more competitive prices. Smaller independent stations in tourist areas often charge more.

To find the best prices in your current area, you can use specialist apps that display price levels at nearby stations. These tools are updated regularly and are free to use.

During the tourist season, prices along the coast and in mountain resorts are traditionally slightly higher. If you are heading there, fill up in more urbanised areas before taking the smaller roads towards your final destination.

Tips for Fuel-Efficient Driving

Driving technique has a direct impact on fuel consumption – sometimes more so than the vehicle itself. Aggressive driving can increase consumption by up to 40 percent compared to smooth, anticipatory driving.

To reduce fuel consumption on every journey, apply these core principles:

• Avoid harsh acceleration and last-minute emergency braking;
• Maintain a steady speed when driving on the motorway;
• Reduce air conditioning use in traffic jams and at low speeds;
• Switch off the engine when stationary for more than 60 seconds;
• Check tyre pressure regularly.

Anticipatory driving is a habit built through practice. When you see an approaching junction ahead, lift off the throttle early and let the car slow down gradually. This saves fuel and reduces brake wear at the same time.

If the car has cruise control, using it on long motorway stretches is a good idea. The system maintains a constant speed without the need for constant adjustments, which directly affects fuel consumption.

Reducing your speed by 10–15 km/h below the maximum permitted on the motorway can bring a noticeable reduction in consumption. Aerodynamic drag increases with the square of speed, so the difference between 130 and 115 km/h is more significant than it appears.

Vehicle Maintenance and Fuel Efficiency

The technical condition of a vehicle directly affects the amount of fuel it burns. Worn spark plugs in a petrol engine, a clogged air filter, or incorrectly inflated tyres – all of these increase consumption.

Tyre pressure is one of the easiest parameters to check. When pressure is too low, the tyre's contact patch with the road is larger, rolling resistance increases, and the engine has to work harder to maintain the set speed.

Regular oil changes are an additional factor in fuel efficiency. Aged oil lubricates the engine less effectively and increases internal friction. Quality oil with the correct viscosity is an investment that pays off through lower consumption.

A clean air filter ensures a sufficient supply of air for the correct fuel mixture. With a clogged filter the engine operates less efficiently and burns more fuel to achieve the same power output. Replacing it is a cheap and quick procedure.

Wheel balancing and correct wheel alignment also affect even tyre wear and fuel efficiency. A routine service is a convenient opportunity to check these parameters at the same time.

If you are renting a car from SpeedyCars, all vehicles in the fleet are regularly serviced and in full technical order. You can therefore focus entirely on your journey, without having to worry about maintenance or the vehicles' technical condition.