| Engine | 3.5L 6-cyl |
| Transmission | Automatic (S9) |
| Drive | All-Wheel Drive |
| Fuel Type | Premium Gasoline |
| Vehicle Class | Compact Cars |
| Engine Desc | SIDI |
| Start-Stop | Yes |
| EPA Vehicle ID | 35613 |
25 MPG combined is a reasonable figure for the 2015 Acura TLX AWD with the 3.5L V6. This isn’t a fuel-sipping hybrid; it’s a comfortably appointed, sure-footed sedan for drivers who want a smooth and responsive driving experience with all-weather confidence. The TLX buyer understands this trade-off, valuing the immediate power of the V6 and the security of all-wheel drive over maximum fuel efficiency.
City and highway performance
The EPA estimates suggest 21 MPG in the city and 31 MPG on the highway for this TLX. The city figure reflects the inefficiencies of stop-and-go driving, where the V6 engine consumes more fuel while accelerating from a standstill. The highway number shows the TLX’s ability to cruise efficiently at steady speeds; this is due to the 9-speed automatic transmission, which keeps engine RPMs low on the open road. Long highway trips will yield the best fuel economy, but expect that number to dip in urban environments.
Annual fuel cost
The EPA estimates the annual fuel cost for the 2015 Acura TLX AWD 3.5L at $2,300. This is based on driving 15,000 miles per year and using national average fuel prices. Your actual fuel costs may vary depending on your driving habits, the type of fuel you use (premium is recommended), and where you live, as fuel prices fluctuate. The $2,300 estimate provides a benchmark against which to compare other vehicles, but treat it as an approximation.
Real-world expectations
EPA numbers are a good starting point, but real-world fuel economy can vary. Aggressive driving, frequent short trips, and cold weather can hurt fuel efficiency. Smooth acceleration and minimal idling will help you achieve numbers closer to the EPA estimates. Many owners report numbers between 22 and 28 MPG in mixed driving conditions. Knowing your driving style is key to predicting your fuel costs. Explore TLX MPG across all years for more detailed driver-submitted data.
How it compares
The 2015 TLX AWD 3.5L lands in the middle of its competition. The Lexus ES 350, for example, achieves an EPA-estimated 24 MPG combined, showing similar efficiency despite lacking all-wheel drive. The all-wheel drive Infiniti Q50 3.7L gets 22 MPG combined. Choosing Acura means giving up a couple MPGs for Acura engineering and styling. The BMW 328i xDrive, with its turbocharged four-cylinder, often exceeds the TLX in real-world fuel economy, but it has less immediate power delivery than the V6 provides. Buyers considering the TLX likely value the V6 engine’s responsive feel and aren’t solely focused on maximizing MPG. Remember to view all Acura fuel economy data for a broader perspective.
Tips to maximize efficiency
Use the TLX’s “Econ” mode. This setting adjusts throttle response and transmission shift points to prioritize fuel efficiency. Power delivery will be slightly reduced, but it can make a difference in MPG, especially during city driving.
Ensure your tires are properly inflated. Check the tire pressure regularly and inflate them to the recommended levels listed on the driver’s side doorjamb. Underinflated tires increase rolling resistance, which reduces fuel economy, and a simple tire pressure check can yield efficiency gains.
Minimize idling. Idling wastes fuel, and if you’re stopped for more than a minute or two, turn off the engine. Modern engine start/stop systems can save fuel.
Anticipate traffic flow, and avoid abrupt acceleration and braking. Smooth driving is safer and more fuel-efficient. By looking ahead and maintaining a consistent speed, you can minimize fuel consumption.
Keep your car well-maintained. Regular oil changes, air filter replacements, and spark plug maintenance ensure that your engine is running efficiently. Neglecting routine maintenance can reduce fuel economy and cause mechanical problems.