2019 Acura RLX — Full Specifications

Reviewed by the 247VehicleCheck Data Team — automotive data reviewers

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28Combined MPG (UK)

3.5L 6-cylEngine

Premium GasolineFuel Type

N/AInsurance Group UK

5★NHTSA Safety

238CO₂ g/km

Running gear matters most — before anything else, UK: check tyre prices at TirendoUS: check wheel & tyre prices at WheelHero for this car's fitment.

The 2019 Acura RLX is a saloon/sedan powered by a 3.5L 6-cyl premium gasoline engine, returning around 28 mpg (UK) / 23.0 mpg (US EPA) combined. Owners often keep a Acura RLX workshop manual to hand for servicing and repairs.

Full Specifications

Engine	3.5L 6-cyl
Transmission	Automatic (S10)
Fuel Type	Premium Gasoline
Powertrain	Conventional
Drive	Front-Wheel Drive
Body Style	Saloon/Sedan
Seats	Data not available
Length	4982 mm
Width	1890 mm
Height	1465 mm
Kerb Weight	Data not available
Fuel Economy (UK)	28 combined / 24 urban / 35 extra-urban mpg
Fuel Economy (US EPA)	23.0 combined / 20.0 city / 29.0 highway mpg
CO₂ Emissions	238 g/km

Owner Essentials for the Acura RLX

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UK Running Costs

Insurance group not available — check with your insurer. At around 8,000 miles per year and 28 mpg combined, expect roughly 1299 litres of fuel annually — multiply by your local price per litre for a cost estimate. Work out exact fuel costs with the fuel cost calculator on 247Calculators. Keeping the car well maintained helps too — a decent car care kit protects resale value.

Convert between MPG and L/100km with the unit converters on 247QuickTools. Not sure what tyre size fits? 247TyreCheck explains tyre sizing.

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Safety Ratings (NHTSA)

5★Overall

5★Frontal

5★Side

5★Rollover

Last updated: 12 September 2026 · Data: US EPA (fueleconomy.gov) & NHTSA snapshots 18 July 2026; Wikidata & curated EU catalogue 18 July 2026

Vehicle data sourced from manufacturer specifications. Always verify with your vehicle handbook or a qualified mechanic. This is a reference tool, not professional advice.

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Frequently Asked Questions

What engine does the 2019 Acura RLX have?

It's fitted with a 3.5L 6-cyl premium gasoline engine, paired with a automatic (s10) transmission.

What is the fuel economy of the 2019 Acura RLX?

It returns around 28 mpg (UK) combined, or 23.0 mpg on the US EPA cycle.

Does the 2019 Acura RLX have a good safety rating?

It holds an overall NHTSA rating of 5 stars, with 5 stars for frontal crash protection.

How many seats does the 2019 Acura RLX have?

Seating capacity data is not available for this model year. It's classed as a saloon/sedan.