
The BMW X3 is a luxury car with a fuel tank capacity of 68 litres or 17.5 gallons. This is considered small by some, but for a vehicle of this size, it is typical. The number of miles between fill-ups depends on the type of driving and associated fuel usage. For example, one driver reported getting 315 miles on city driving, while another reported getting 400 miles on the highway.
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What You'll Learn

The BMW X3 fuel tank capacity is 68 litres
The fuel efficiency of the BMW X3 will depend on a number of factors, including the type of driving and associated fuel usage. For example, city driving tends to be less fuel-efficient than highway driving due to frequent stops and starts, as well as varying speeds. On average, the BMW X3 can achieve around 20-22 miles per gallon in city driving conditions and 26-27 miles per gallon on the highway.
However, fuel efficiency can also be influenced by factors such as cargo load, headwinds or tailwinds, and driving conditions. For instance, when fully loaded and pulling a boat into a headwind, the fuel efficiency may decrease to 16 miles per gallon. On the other hand, with a light load and favourable tailwinds, the fuel efficiency can increase to 30 miles per gallon.
Overall, the BMW X3 offers a good balance between fuel tank capacity and fuel efficiency. With a full tank of fuel, the vehicle can typically travel between 300 and 500 miles, depending on the driving conditions and fuel usage. This range provides a reasonable balance between fuel stops and fuel efficiency, ensuring that drivers can enjoy their journeys without frequent interruptions for refuelling.
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This equates to 17.5 gallons
The BMW X3 has a fuel tank capacity of 68 litres, which equates to 17.5 gallons. This capacity offers a range of approximately 280 miles with combined city and highway driving. However, the actual range achieved can vary depending on driving conditions and fuel usage. For instance, an X3 driver reported getting around 315 miles on city driving and up to 400 miles on the highway.
The BMW X3's fuel efficiency is notable, with reported mileage ranging from 16 miles per gallon to 30 miles per gallon. Several factors influence fuel consumption, including driving conditions, vehicle load, and wind conditions. For example, driving in stop-and-go highway traffic or pulling a boat into a headwind can decrease fuel efficiency.
Compared to other vehicles, the BMW X3's fuel tank capacity falls within a typical range. While some larger SUVs or pickup trucks may have bigger fuel tanks, the X3's 17.5-gallon tank is considered adequate for its size.
The fuel tank capacity of 17.5 gallons in the BMW X3 provides a balance between range and efficiency. This capacity allows for a reasonable number of miles between fill-ups, making it convenient for daily commutes and road trips. Additionally, the X3's fuel efficiency contributes to a reduced impact on the environment and fuel costs for the owner.
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Users report getting 315-400 miles from a tank
The BMW X3 has a fuel tank capacity of 68 litres. However, the number of miles that a tank of fuel will last depends on several factors, including driving conditions and driving style. Users have reported getting between 315 and 400 miles from a tank of fuel in their BMW X3.
One user reported getting around 300 miles per tank, with mostly back road driving. They also noted that they don't like to push the tank to the final drop, so they could probably get closer to 300 miles if they drove until the tank was empty. Another user reported getting 310 miles on their first tank and 290 miles on their second tank, with 75% highway driving and 25% city driving.
Other users have reported getting even better fuel mileage with their BMW X3. One person stated that they typically get around 280 miles per tank with combined city and highway driving. However, on road trips with mostly highway driving, they have gotten above 350 miles on a single tank of fuel.
The driving conditions and driving style can significantly impact the fuel mileage of the BMW X3. For example, one user reported that their fuel mileage improved from 18 mpg to 23.5 mpg after their vehicle broke in. Another user noted that every 100 lbs of additional weight in the vehicle could decrease fuel mileage by up to 2%, so carrying extra passengers or gear can impact the number of miles per tank.
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The BMW X3 takes more fuel than advertised
One possible explanation for the higher fuel consumption is the driving conditions and location. For example, driving in city traffic with frequent stops at lights and stop signs can reduce fuel efficiency. Short journey cycles in slow-moving city traffic can also affect mileage, as the catalytic converters may not function optimally and the oil may not be warmed up sufficiently. Additionally, driving in locations with varying weather conditions, such as alternating between damp and dry weather, can impact fuel consumption.
Another factor to consider is the type of fuel used. BMW X3 owners are recommended to use premium gas with a higher octane rating to optimize engine performance and fuel efficiency. Using lower octane fuel can result in lower miles per gallon and potentially lead to engine problems over time. However, some X3 drivers have reported using regular gas without any issues, while others have noticed a significant difference in performance when using premium gas.
The driving mode and vehicle settings can also impact fuel consumption. Eco mode and EcoPro settings are designed to improve fuel efficiency by adjusting throttle settings, gearbox shift points, and engine boost. However, some drivers have found that disabling the auto stop/start function and using comfort mode can result in better fuel economy, especially in city driving conditions.
Lastly, it's important to consider the specific model and year of the BMW X3, as different models may have variations in fuel efficiency. For example, the 2015 F25 model and the 2016 X3 model have been reported to have lower mileage than expected. Overall, while the BMW X3 may take more fuel than advertised, there are several factors that can influence fuel consumption, and it is important for drivers to find the optimal combination of fuel type, driving mode, and vehicle settings to improve their fuel efficiency.
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The fuel pump pickup is always at the bottom of the tank
The BMW X3 has a fuel tank capacity of 68 litres. While the fuel pump pickup is always at the bottom of the tank, it is not advisable to run your fuel tank low. This is because, as one source notes, "you'll pick up all the shit in the bottom of the tank and the water and you'll fuck your engine". Indeed, sediment, water, and other debris can collect at the bottom of the tank, and if the fuel level gets too low, this will be picked up by the fuel pump. This can cause issues with the engine.
Another source notes that while it is not as much of an issue as it used to be, water can get into fuel storage tanks at gas stations, particularly those at the bottom of a hill or near a body of water. This water will sink to the bottom of your fuel tank, and if the tank is run low, it will be the first thing that gets sucked up by the fuel pump. This will result in poor engine performance until the water is gone and replaced with fuel.
Older cars without baffles in their tanks can also suffer from cavitation and burned-up pumps if the fuel tank is regularly run low. Additionally, one source notes that allowing the fuel tank to get too low can stress the fuel pump.
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Frequently asked questions
The fuel tank capacity of the BMW X3 is 68 litres or 17.5 gallons.
This depends on the type of driving you do and the associated fuel usage. With combined city and highway driving, you can get around 280 miles on a full tank. With city driving only, you can get around 315 miles, and with highway driving, you can get up to 400 miles.
The fuel efficiency of the BMW X3 is generally considered good, with some drivers reporting better fuel mileage than competitors like the Murano. However, there are also reports of the X3 taking more fuel than advertised.
No, the BMW X3 does not require premium fuel.











































