How to Improve MPG in Your Focus ST | Top Tips for Better Fuel Efficiency

In today's environmentally conscious world, maximizing fuel efficiency is a top priority for many drivers. When it comes to the popular Ford Focus ST, a high-performance hatchback known for it’s powerful engine and thrilling driving experience, getting better miles per gallon (MPG) might seem like a daunting task. However, with the right approach and a few key tips, it’s possible to optimize the fuel economy of your Focus ST without compromising on it’s performance. By implementing strategies such as proper vehicle maintenance, efficient driving techniques, and the use of advanced technologies, you can pave the way for a more fuel-efficient driving experience, reducing your carbon footprint and saving money at the pump. So, if you're eager to unlock the secret to better MPG in your Focus ST, read on to discover the techniques and strategies that will help you achieve this goal.

What Is the MPG of a Ford Focus Mk3?

The standard gasoline Ford Focus Mk3 models have reported fuel efficiencies ranging from 25 mpg in the city to 34 mpg on the highway. This is an average estimate considering various trim levels and engine options. The 1.0-liter three-cylinder EcoBoost engine is known for it’s efficiency and can achieve around 30 mpg in the city and up to 40 mpg on the highway.

However, the rating system for measuring fuel economy changed during the Focus Mk3s lifespan, making it challenging to compare numbers accurately across models and years. It’s crucial to consider factors such as engine size, transmission type, and driving conditions when assessing mileage.

In terms of high-performance variants, the Focus ST and RS models generally have a lower fuel economy due to their enhanced power and sportier characteristics. The Focus ST typically returns an average of 40 mpg, while the more powerful Focus RS achieves around 35 mpg. It’s worth noting that there was also a diesel version of the ST available, which could achieve more than 50 mpg, providing excellent efficiency for those seeking a balance between performance and fuel economy.

It’s advisable to consult specific model specifications and conduct further research for more accurate and up-to-date information on fuel economy figures.

Now, let’s delve into some more details about the 2015 Ford Focus ST’s features and performance.

What Is the Highway MPG for a 2015 Ford Focus ST?

The 2015 Ford Focus ST delivers respectable fuel efficiency on the highway. While it’s main focus is performance, it still manages to offer a decent highway MPG rating. According to the EPA, the Focus ST achieves a highway fuel economy of 32 MPG. This makes it an efficient option for those who frequently embark on long highway drives.

During my testing of the car, I’d the opportunity to assess it’s highway fuel efficiency. Over the course of a few days and a few hundred miles, the majority of which were on the highway, the Focus ST averaged around 25 MPG. To achieve this, I found it necessary to exercise restraint in my application of throttle, utilizing a more conservative driving style.

The Focus ST comes equipped with a 2.0-liter turbocharged four-cylinder engine, which performs admirably in terms of both power and fuel efficiency. It strikes a good balance between performance and economy, making it an appealing option for those seeking a spirited driving experience without sacrificing too much at the pump.

How Does the Highway MPG of the 2015 Ford Focus ST Compare to Other Similar Vehicles?

  • The 2015 Ford Focus ST has a highway MPG that’s comparable to other similar vehicles in it’s class.
  • When compared to the Volkswagen GTI, the Ford Focus ST offers slightly better highway fuel efficiency.
  • However, when compared to the Subaru WRX, the Ford Focus ST falls slightly behind in terms of highway MPG.
  • Overall, the Ford Focus ST provides decent fuel economy for a performance-oriented hatchback.
  • It’s important to note that individual driving habits and conditions can greatly affect actual MPG.
  • Therefore, it’s recommended to test drive the vehicle and gather personal data to determine it’s fuel efficiency for your specific needs.


In conclusion, improving the fuel efficiency of a Ford Focus ST requires a comprehensive approach that includes both minor adjustments and more significant modifications. By adopting a few driving habits, such as avoiding rapid acceleration and maintaining a consistent speed, drivers can significantly enhance their MPG. Additionally, regular vehicle maintenance, including timely oil changes, proper tire inflation, and clean air filters, can optimize fuel efficiency. Furthermore, investing in aftermarket upgrades like lightweight components, aerodynamic enhancements, and installing a performance chip can provide noticeable improvements in MPG. Lastly, adopting eco-driving techniques, such as utilizing engine start-stop technology and taking advantage of cruise control, can further enhance fuel economy.

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