2018 Acura ILX — Full Specifications
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The 2018 Acura ILX is a saloon/sedan powered by a 2.4L 4-cyl premium gasoline engine. It returns around 35 mpg (UK) / 29 mpg (US EPA) combined. Owners often keep a Acura ILX workshop manual to hand for servicing and repairs.
Compared with the 2017 Acura ILX: Fuel economy is essentially unchanged at around 35 mpg (UK) combined. The engine line-up listed by EPA is unchanged. It carries the same 5★ overall NHTSA rating.
Full Specifications
| Engine | 2.4L 4-cyl |
|---|---|
| Transmission | Automatic (AM-S8) |
| Fuel Type | Premium Gasoline |
| Powertrain | Conventional |
| Drive | Front-Wheel Drive |
| Body Style | Saloon/Sedan |
| Length | 4549 mm |
| Width | 1794 mm |
| Height | 1413 mm |
| Passenger Volume (EPA) | 89 cu ft (2,520 L) |
| Luggage Volume (EPA) | 12 cu ft (340 L) |
| Fuel Economy (UK) | 35 combined / 30 urban / 42 extra-urban mpg |
| Fuel Economy (US EPA) | 29 combined / 25 city / 35 highway mpg |
| CO₂ Emissions | 192 g/km |
| EPA Greenhouse Gas Score | 6 / 10 (10 = lowest emissions) |
| EPA Est. Annual Fuel Cost | $2,850 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 1 configuration for the 2018 Acura ILX, all with the 2.4L 4-cyl 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 |
|---|---|---|---|---|---|---|
| 2.4L 4-cyl | Automatic (AM-S8) | Front-Wheel Drive | 35 | 29 (25/35) | 192 | $2,850 |
MPG (US) shows combined, with city/highway in brackets. Highlighted row = the configuration used for the headline figures. Source: US EPA fueleconomy.gov.
EPA measures interior passenger volume at 89 cubic feet (about 2,520 litres) and luggage volume at 12 cubic feet (about 340 litres). These are US EPA interior-volume figures; they are measured differently from the boot capacity numbers UK manufacturers quote.
Owner Essentials for the 2018 Acura ILX
Running Costs: 2018 Acura ILX
Covering around 8,000 miles a year in a 2018 Acura ILX at 35 mpg combined, expect roughly 1,039 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $2,850 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.
Only need this car occasionally? See our buy vs rent comparison.
2018 Acura ILX Safety Ratings (NHTSA)
Recalls & Owner Complaints (NHTSA)
NHTSA lists 4 safety recall campaigns that include the 2018 Acura ILX (as of 6 October 2026). Most affected areas: Fuel system (2), Service brakes (1), Power train (1). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
- Service brakes — campaign 25V859000, reported 11 December 2025. Risk: Reduced brake function can extend the distance required to stop, increasing the risk of a crash or injury.
- Fuel system — campaign 23V858000, reported 18 December 2023. Risk: Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.
- Power train — campaign 19V424000, reported 6 June 2019. Risk: A separated driveshaft can cause the vehicle to have a loss of drive or allow the vehicle to move even while in Park, increasing the risk of a crash or injury.
- Fuel system — campaign 19V052000, reported 24 January 2019. Risk: If the fuel gauge displays that the vehicle has more gas than it actually does, the vehicle may run out of gas and stall, increasing the risk of a crash.
Owners have filed 23 complaints with NHTSA about the 2018 Acura ILX. The most-reported areas are Fuel/propulsion system (12), Fuel system (7), Service brakes (2). Complaints include 2 reported crashes. That is close to the median of 22 complaints across the 10 Acura ILX model years in our data.
Used-buyer checklist for the 2018 Acura ILX
Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:
- Fuel system (2 recall campaigns · 19 owner complaints) — Ask whether any fuel-pump or fuel-system recalls were completed, and watch for hard starting or stalling.
- Brakes (1 recall campaign · 2 owner complaints) — Brake firmly from speed and look for pulling, vibration or a soft pedal; ask for brake service history.
- Transmission & drivetrain (1 recall campaign) — On the test drive, watch for hesitation, jerking or slipping between gears and ask for transmission service history.
- Engine (2 owner complaints) — Listen for unusual noise on a cold start, check for warning lights and ask for the service records.
Source: US NHTSA recall and consumer-complaint databases, retrieved 6 October 2026. Complaints are unverified owner reports, not confirmed defects. Check any vehicle by VIN at nhtsa.gov/recalls, and see our guide to checking a used car for recalls.
How It Compares
Acura models in our database average about 29 mpg (UK) combined on their most efficient configuration; the 2018 Acura ILX's 35 mpg is 6 mpg above that make average. Its 192 g/km CO₂ figure is 43 g/km lower than the 235 g/km Acura average.
Of the 10 Acura ILX model years we cover, the 2018 is the most economical on its best configuration (35 mpg UK combined). See every Acura ILX 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.
Recommended Accessories for the 2018 Acura ILX
Frequently Asked Questions
What engine does the 2018 Acura ILX have?
It's fitted with a 2.4L 4-cyl premium gasoline engine, paired with a automatic (am-s8) transmission.
What is the fuel economy of the 2018 Acura ILX?
The most efficient configuration returns around 35 mpg (UK) combined, or 29 mpg on the US EPA cycle.
How much does the 2018 Acura ILX cost to fuel per year?
The US EPA estimates about $2,850 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.
Does the 2018 Acura ILX have a good safety rating?
It holds an overall NHTSA rating of 5 stars, with 4 stars for frontal crash protection.
Does the 2018 Acura ILX have any recalls?
NHTSA lists 4 safety recall campaigns that include the 2018 Acura ILX (as of 6 October 2026). Most affected areas: Fuel system (2), Service brakes (1), Power train (1). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
What are the most common problems reported for the 2018 Acura ILX?
Among the 23 owner complaints filed with NHTSA, the most-reported areas are Fuel/propulsion system (12 complaints), Fuel system (7 complaints), Service brakes (2 complaints). Complaints are unverified owner reports, not confirmed defects, and raw counts rise with how many cars were sold.
How much interior and luggage space does the 2018 Acura ILX have?
EPA measures interior passenger volume at 89 cubic feet (about 2,520 litres) and luggage volume at 12 cubic feet (about 340 litres). These are US EPA interior-volume figures, which are measured differently from the UK boot-capacity numbers manufacturers quote.