The 2018 Acura RLX gets a 3.5-liter V6 under the hood that makes 310 hp @ 6500 rpm horsepower and 272 lb.-ft. @ 4500 rpm of torque. This engine is quite fuel-efficient and helps the car deliver a mileage of 20 mpg in the city and 29 mpg on the highway. The combined efficiency of the engine comes out to be 23 mpg as rated by the EPA.
2018 Acura RLX MPG and Range
| Trim Name | MPG City | MPG Highway | MPG Combined | Fuel Tank Capacity | Range in Miles |
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| P-AWS 4dr Sedan (3.5L 6cyl 10A) | 20 mpg | 29 mpg | 23 mpg | 18.5 gal. | 422.8/483.2 mi. |
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| P-AWS w/Technology Package 4dr Sedan (3.5L 6cyl 10A) | 20 mpg | 29 mpg | 23 mpg | 18.5 gal. | 370.00 / 536.50 mi. |
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The 2018 Acura RLX provides the fuel efficiency figures of 20 mpg in the city, 29 mpg on the highway and 23 mpg combined. Though these numbers are respectable, the 2018 Acura RLX still falls a little behind 2018 Honda Civic as the latter possess better mileage figures.
The total fuel tank capacity of the car is 18.5 gallons which provides a total travel range of 370.00 / 536.50 - 422.8/483.2 miles. The overall range of the 2018 Acura RLX is also less in comparison to some of its rivals due to lower efficiency but you won't have to visit the filling stations every now and then.
2018 Acura RLX vs. Competitor's MPG and Range
| Car Name | MPG City | MPG Highway | MPG Combined | Fuel Tank Capacity | Range in Miles |
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| 2018 Acura RLX | 20 mpg | 29 mpg | 23 mpg | 18.5 gal. | 370.00 / 536.50 - 422.8/483.2 mi. |
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| 2018 Cadillac CTS | 19 - 22 mpg | 27 - 30 mpg | 22 - 25 mpg | 19 gal. | 324.0/486.0 - 418.0/570.0 mi. |
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| 2018 Ford Focus | 24 - 30 mpg | 34 - 40 mpg | 28 - 34 mpg | 12.4 gal. | 297.6/421.6 - 520.0/650.0 mi. |
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| 2018 Lincoln Continental | 16 - 18 mpg | 24 - 27 mpg | 19 - 21 mpg | 19 gal. | 304.00 / 456.00 - 342.00 / 513.00 mi. |
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| 2018 Honda Civic | 28 - 32 mpg | 40 - 42 mpg | 32 - 36 mpg | 12.4 gal. | 330.0/435.6 - 396.8/520.8 mi. |
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| 2018 Acura TLX | 20 - 23 mpg | 29 - 33 mpg | 23 - 27 mpg | 17.2 gal. | 344.0/498.8 - 395.6/567.6 mi. |
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| 2018 BMW 5 Series | 20 - 24 mpg | 29 - 34 mpg | 23 - 27 mpg | 18 gal. | 360.0/522.0 - 414.0/594.0 mi. |
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| 2018 Cadillac CT6 | 18 - 22 mpg | 26 - 30 mpg | 21 - 25 mpg | 19.5 gal. | 266.0/399.0 - 429.0/585.0 mi. |
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| 2018 Infiniti Q70 | 16 - 18 mpg | 23 - 25 mpg | 18 - 21 mpg | 20 gal. | 320.00 / 460.00 - 360.00 / 500.00 mi. |
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| 2018 Mercedes-Benz C-Class | 23 - 24 mpg | 32 - 33 mpg | 26 - 27 mpg | 17.4 gal. | 400.20 / 556.80 - 417.60 / 574.20 mi. |
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| 2018 Genesis G80 | 15 - 19 mpg | 23 - 27 mpg | 18 - 22 mpg | 20.3 gal. | 304.50 / 466.90 - 365.40 / 507.50 mi. |
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2017 Acura RLX MPG and Range
| Trim Name | MPG City | MPG Highway | MPG Combined | Fuel Tank Capacity | Range in Miles |
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| Advance Package 4dr Sedan (3.5L 6cyl 6A) | 20 mpg | 30 mpg | 23 mpg | 18.5 gal. | 370.00 / 555.00 mi. |
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| Technology Package 4dr Sedan (3.5L 6cyl 6A) | 20 mpg | 30 mpg | 23 mpg | 18.5 gal. | 370.00 / 555.00 mi. |
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2017 Acura RLX vs. Competitor's MPG and Range
| Car Name | MPG City | MPG Highway | MPG Combined | Fuel Tank Capacity | Range in Miles |
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| 2017 Infiniti Q70 hybrid Sedan | 28 mpg | 33 mpg | 30 mpg | 17.8 gal. | 498.40 / 587.40 mi. |
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| 2017 Acura RLX | 20 mpg | 30 mpg | 23 mpg | 18.5 gal. | 370.00 / 555.00 mi. |
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| 2017 Cadillac ATS | 19 - 22 mpg | 27 - 31 mpg | 22 - 25 mpg | 16 gal. | 304.00 / 432.00 - 352.00 / 496.00 mi. |
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| 2017 Cadillac CTS | 19 - 22 mpg | 27 - 30 mpg | 22 - 25 mpg | 19 gal. | 361.00 / 513.00 - 418.00 / 570.00 mi. |
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| 2017 Ford Focus | 25 - 30 mpg | 34 - 40 mpg | 28 - 34 mpg | 12.4 gal. | 310.00 / 421.60 - 372.00 / 496.00 mi. |
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| 2017 Lincoln Continental | 16 - 18 mpg | 24 - 27 mpg | 19 - 21 mpg | 19 gal. | 304.00 / 456.00 - 342.00 / 513.00 mi. |
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| 2017 Honda Civic | 28 - 32 mpg | 40 - 42 mpg | 32 - 36 mpg | 12.4 gal. | - |
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| 2017 Chevrolet Cruze | 28 - 30 mpg | 39 - 40 mpg | 32 - 34 mpg | 13.7 gal. | 363.00 / 484.00 - 411.00 / 548.00 mi. |
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| 2017 Hyundai Accent | 26 - 27 mpg | 36 - 37 mpg | 30 - 31 mpg | 11.4 gal. | 296.40 / 410.40 - 307.80 / 421.80 mi. |
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| 2017 Lexus GS 450h hybrid | 29 mpg | 34 mpg | 31 mpg | 17.4 gal. | 504.60 / 591.60 mi. |
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| 2017 Honda Accord | 21 - 27 mpg | 32 - 36 mpg | 25 - 30 mpg | 17.2 gal. | - |
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| 2017 Acura TLX | 21 - 24 mpg | 31 - 35 mpg | 25 - 28 mpg | 17.2 gal. | - |
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| 2017 Cadillac CT6 | 18 - 22 mpg | 26 - 30 mpg | 21 - 25 mpg | 19.5 gal. | 351.00 / 507.00 - 429.00 / 585.00 mi. |
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| 2017 Infiniti Q70 | 16 - 18 mpg | 23 - 25 mpg | 18 - 21 mpg | 20 gal. | 320.00 / 460.00 - 360.00 / 500.00 mi. |
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| 2017 Lexus GS 350 | 19 - 20 mpg | 26 - 28 mpg | 22 - 23 mpg | 17.4 gal. | 330.60 / 452.40 - 348.00 / 487.20 mi. |
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| 2017 Mercedes-Benz C-Class | 24 mpg | 31 - 34 mpg | 27 - 28 mpg | 17.4 gal. | 417.60 / 539.40 mi. |
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| 2017 Subaru Impreza | 23 - 28 mpg | 31 - 38 mpg | 26 - 32 mpg | 13.2 gal. | - |
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2016 Acura RLX MPG and Range
| Trim Name | MPG City | MPG Highway | MPG Combined | Fuel Tank Capacity | Range in Miles |
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| Advance Package 4dr Sedan (3.5L 6cyl 6A) | 20 mpg | 31 mpg | 24 mpg | 18.5 gal. | 370.00 / 573.50 mi. |
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| Technology Package 4dr Sedan (3.5L 6cyl 6A) | 20 mpg | 31 mpg | 24 mpg | 18.5 gal. | 370.00 / 573.50 mi. |
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| Navigation 4dr Sedan (3.5L 6cyl 6A) | 20 mpg | 31 mpg | 24 mpg | 18.5 gal. | 370.00 / 573.50 mi. |
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2016 Acura RLX vs. Competitor's MPG and Range
| Car Name | MPG City | MPG Highway | MPG Combined | Fuel Tank Capacity | Range in Miles |
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| 2016 Cadillac CT6 | 18 - 22 mpg | 26 - 31 mpg | 21 - 25 mpg | 19.5 gal. | 351.00 / 507.00 - 429.00 / 604.50 mi. |
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| 2016 Lexus GS 350 | 19 - 20 mpg | 26 - 29 mpg | 22 - 23 mpg | 17.4 gal. | 330.60 / 452.40 - 348.00 / 504.60 mi. |
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| 2016 Mercedes-Benz E-Class | 20 - 28 mpg | 28 - 42 mpg | 23 - 33 mpg | 21.1 gal. | 422.00 / 590.80 mi. |
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| 2016 Acura RLX | 20 mpg | 31 mpg | 24 mpg | 18.5 gal. | 370.00 / 573.50 mi. |
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| 2016 Audi A6 | 20 - 24 mpg | 30 - 35 mpg | 24 - 28 mpg | 19.8 gal. | 396.00 / 574.20 - 475.20 / 673.20 mi. |
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2015 Acura RLX MPG and Range
| Trim Name | MPG City | MPG Highway | MPG Combined | Fuel Tank Capacity | Range in Miles |
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| Advance Package 4dr Sedan (3.5L 6cyl 6A) | 20 mpg | 31 mpg | 24 mpg | 18.5 gal. | 370.00 / 573.50 mi. |
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| Krell Audio Package 4dr Sedan (3.5L 6cyl 6A) | 20 mpg | 31 mpg | 24 mpg | 18.5 gal. | 370.00 / 573.50 mi. |
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| Technology Package 4dr Sedan (3.5L 6cyl 6A) | 20 mpg | 31 mpg | 24 mpg | 18.5 gal. | 370.00 / 573.50 mi. |
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| Navigation 4dr Sedan (3.5L 6cyl 6A) | 20 mpg | 31 mpg | 24 mpg | 18.5 gal. | 370.00 / 573.50 mi. |
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| 4dr Sedan (3.5L 6cyl 6A) | 20 mpg | 31 mpg | 25 mpg | 18.5 gal. | 370.00 / 573.50 mi. |
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2015 Acura RLX vs. Competitor's MPG and Range
| Car Name | MPG City | MPG Highway | MPG Combined | Fuel Tank Capacity | Range in Miles |
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| 2015 Audi A6 | 17 - 25 mpg | 27 - 33 mpg | 20 - 29 mpg | 19.8 gal. | 356.40 / 534.60 - 495.00 / 653.40 mi. |
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| 2015 Infiniti Q70 | 16 - 18 mpg | 23 - 26 mpg | 19 - 22 mpg | 20 gal. | 320.0/460.0 - 360.0/520.0 mi. |
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| 2015 Lexus GS 350 | 19 mpg | 26 - 29 mpg | 22 - 24 mpg | 17.4 gal. | 330.60 / 452.40 mi. |
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| 2015 Mercedes-Benz E-Class | 20 mpg | 28 - 29 mpg | 23 - 24 mpg | 21.1 gal. | 422.00 / 590.80 mi. |
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| 2015 Acura RLX | 20 mpg | 31 mpg | 24 - 25 mpg | 18.5 gal. | 370.00 / 573.50 mi. |
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| 2015 Cadillac XTS | 14 - 18 mpg | 21 - 28 mpg | 17 - 23 mpg | 18.6 - 19.5 gal. | 266.00 / 399.00 - 342.00 / 532.00 mi. |
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2014 Acura RLX MPG and Range
| Trim Name | MPG City | MPG Highway | MPG Combined | Fuel Tank Capacity | Range in Miles |
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| Advance Package 4dr Sedan (3.5L 6cyl 6A) | 20 mpg | 31 mpg | 24 mpg | 18.5 gal. | 370.00 / 573.50 mi. |
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| Krell Audio Package 4dr Sedan (3.5L 6cyl 6A) | 20 mpg | 31 mpg | 24 mpg | 18.5 gal. | 370.00 / 573.50 mi. |
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| Technology Package 4dr Sedan (3.5L 6cyl 6A) | 20 mpg | 31 mpg | 24 mpg | 18.5 gal. | 370.00 / 573.50 mi. |
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| Navigation 4dr Sedan (3.5L 6cyl 6A) | 20 mpg | 31 mpg | 24 mpg | 18.5 gal. | 370.00 / 573.50 mi. |
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| 4dr Sedan (3.5L 6cyl 6A) | 20 mpg | 31 mpg | 25 mpg | 18.5 gal. | 357.0/527.0 mi. |
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2014 Acura RLX vs. Competitor's MPG and Range
| Car Name | MPG City | MPG Highway | MPG Combined | Fuel Tank Capacity | Range in Miles |
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| 2014 Acura RLX | 20 mpg | 31 mpg | 24 - 25 mpg | 18.5 gal. | 370.00 / 573.50 mi. |
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| 2014 Audi A6 | 18 - 25 mpg | 27 - 33 mpg | 22 - 29 mpg | 19.8 gal. | 356.40 / 534.60 - 495.00 / 653.40 mi. |
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| 2014 Toyota Avalon | 21 mpg | 31 mpg | 26 mpg | 17 gal. | 357.0/527.0 mi. |
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Important 2018 Acura RLX Links:
