31 MPG combined is a respectable figure for the 2018 Audi A4 Ultra 2.0L 4-cyl, but understanding what that means is important. This isn’t a hyper-efficient hybrid; it’s a premium sedan that focuses on delivering a refined driving experience. The A4 Ultra achieves this MPG through intelligent engineering, specifically tailored to appeal to buyers who want both luxury and reasonable running costs. They appreciate Audi’s build quality and technological features, and the fuel economy is simply an added bonus, not the main reason for buying.

City and highway performance

The EPA estimates for the 2018 Audi A4 Ultra show a good balance between city and highway driving. The city MPG figure is 27, which is adequate for navigating urban environments, especially considering how responsive the 2.0L turbocharged engine is. The A4 Ultra performs well out on the open road, with a highway MPG of 37. This allows for comfortable and relatively economical long-distance cruising, further adding to its appeal for those who frequently travel for work or leisure.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2018 Audi A4 Ultra is $1,850. This is based on driving 15,000 miles per year and using the national average fuel price. While individual spending will vary depending on driving habits and local fuel costs, $1,850 provides a baseline for understanding the A4 Ultra’s impact on your wallet. This estimate does not account for variations between different gas grades. Audi recommends premium fuel for the A4 Ultra to get the best performance, so factor that into your budget.

Real-world expectations

While EPA estimates provide a standardized comparison, real-world fuel economy will differ. Aggressive driving, frequent short trips, and carrying heavy loads can all negatively impact MPG. However, the A4 Ultra’s efficient engine and well-tuned transmission mean that achieving numbers close to the EPA estimates is realistic. Drivers who accelerate smoothly, anticipate traffic flow, and drive at consistent speeds will see impressive fuel efficiency.

And using the car’s driving modes can help save fuel.

How it compares

Several competitors try to attract the premium sedan buyer, each with trade-offs and advantages. The BMW 330i, for example, offers a similar driving experience, but often gets slightly lower MPG, around 28 MPG combined. The Mercedes-Benz C300 offers comparable luxury, but typically has lower fuel economy.

You can easily compare A4 MPG across all years to better understand where this particular model year falls. The Acura TLX, while positioned slightly below the A4 in terms of brand prestige, can offer comparable fuel economy in its four-cylinder form. Consider how the A4 Ultra’s premium features and driving performance justify its fuel consumption compared to these alternatives.

Tips to maximize efficiency

The A4 Ultra’s S tronic transmission is designed for efficiency. Use “Drive” mode for everyday commuting, allowing the car to shift smoothly and quickly reach higher gears. Avoid constant aggressive acceleration in “Sport” mode, which keeps the engine revving higher and consumes more fuel.

Keep an eye on your tire pressure. Underinflated tires create more rolling resistance, forcing the engine to work harder and decreasing fuel economy. Make sure your tires are inflated to the manufacturer’s recommended pressure, which can be found on the sticker inside the driver’s side doorjamb. This can noticeably improve your MPG.

Remove extra weight in the vehicle. Extra cargo in the trunk or back seats adds to the load the engine must carry, burning more fuel. Remove any items you don’t need regularly. Also, think about removing any roof racks or carriers when not in use, as they hurt aerodynamics.

Plan your routes. Avoiding stop-and-go traffic and opting for routes with smoother flow can significantly improve fuel economy. Use navigation apps to identify potential delays and choose alternative paths. Consider combining errands into a single trip to minimize cold starts, which use more fuel.

While Audi recommends premium fuel for optimal performance, experimenting with mid-grade fuel, if your specific driving style tends to be gentler, *might* yield some economic benefits. Closely monitor engine performance and listen for any signs of knocking or decreased responsiveness. If you notice any issues, revert to premium fuel. And be sure to compare all Audi fuel economy data before making your decision.