2026 Acura RDX A-SPEC — Full Specifications
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The 2026 Acura RDX A-SPEC is an SUV powered by a 2L 4-cyl turbo premium gasoline engine. It returns around 28 mpg (UK) / 23 mpg (US EPA) combined. Owners often keep a Acura RDX A-SPEC workshop manual to hand for servicing and repairs.
Related listing: see also the 2026 Acura RDX page for the base RDX listing, which may cover additional engines and body styles.
Compared with the 2025 Acura RDX A-SPEC: Fuel economy is essentially unchanged at around 28 mpg (UK) combined. The engine line-up listed by EPA is unchanged.
Full Specifications
| Engine | 2L 4-cyl turbo |
|---|---|
| Transmission | Automatic (S10) |
| Fuel Type | Premium Gasoline |
| Powertrain | Conventional |
| Drive | All-Wheel Drive |
| Body Style | SUV |
| Fuel Economy (UK) | 28 combined / 25 urban / 31 extra-urban mpg |
| Fuel Economy (US EPA) | 23 combined / 21 city / 26 highway mpg |
| CO₂ Emissions | 240 g/km |
| EPA Greenhouse Gas Score | 5 / 10 (10 = lowest emissions) |
| EPA Est. Annual Fuel Cost | $3,550 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 1 configuration for the 2026 Acura RDX A-SPEC, all with the 2L 4-cyl turbo engine. The headline figures at the top of this page describe the most fuel-efficient configuration.
| Engine | Transmission | Drive | MPG (UK) | MPG (US) | CO₂ g/km | Fuel cost / yr |
|---|---|---|---|---|---|---|
| 2L 4-cyl turbo | Automatic (S10) | All-Wheel Drive | 28 | 23 (21/26) | 240 | $3,550 |
MPG (US) shows combined, with city/highway in brackets. Highlighted row = the configuration used for the headline figures. Source: US EPA fueleconomy.gov.
Owner Essentials for the 2026 Acura RDX A-SPEC
Running Costs: 2026 Acura RDX A-SPEC
Covering around 8,000 miles a year in a 2026 Acura RDX A-SPEC at 28 mpg combined, expect roughly 1,299 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $3,550 a year in fuel for the most efficient configuration (15,000 miles, national average prices). Work out exact fuel costs with the fuel cost calculator on 247Calculators.
Convert between MPG and L/100km with the unit converters on 247QuickTools. Not sure what tyre size fits? 247TyreCheck explains tyre sizing.
Planning a road trip? Grab a road trip packing list. Only need this car occasionally? See our buy vs rent comparison.
2026 Acura RDX A-SPEC Safety Ratings (NHTSA)
No NHTSA crash-test rating is on record for this model year. The NHTSA rates only a subset of vehicles each year; you can browse every rated vehicle on our NHTSA Safety Ratings hub.
How It Compares
How does the Acura RDX A-SPEC compare to similar SUVs? SUVs in our database average around 27 mpg (UK) combined — this model sits close to that average, within 1 mpg. Its 240 g/km CO₂ figure is 13 g/km lower than the 253 g/km average for SUVs on this site. This comparison is based on 1824 SUVs in our dataset.
At 28 mpg (UK) combined it sits close to the 29 mpg average for Acura models in our database.
Of the 8 Acura RDX A-SPEC model years we cover, the 2026 ranks 6th for combined fuel economy on its best configuration (28 mpg UK combined, against a high of 29 mpg). See every Acura RDX A-SPEC year side by side.
Last updated: · Data: US EPA (fueleconomy.gov) and NHTSA safety ratings 18 July 2026; NHTSA recalls and complaints 6 October 2026; Wikidata & curated EU catalogue 18 July 2026; European generation and engine data from Wikipedia 7 October 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 2026 Acura RDX A-SPEC have?
It's fitted with a 2L 4-cyl turbo premium gasoline engine, paired with a automatic (s10) transmission.
What is the fuel economy of the 2026 Acura RDX A-SPEC?
The most efficient configuration returns around 28 mpg (UK) combined, or 23 mpg on the US EPA cycle.
How much does the 2026 Acura RDX A-SPEC cost to fuel per year?
The US EPA estimates about $3,550 a year in fuel for the most efficient configuration, based on 15,000 miles of mixed driving and national average fuel prices. Your own cost will depend on mileage and local prices.
Is the Acura RDX A-SPEC's fuel economy good for an SUV?
Yes — it returns around 28 mpg (UK) combined, against a same-body-style average of roughly 27 mpg among the SUVs we track.