2022 head-to-head · Small SUV

2022 Acura RDX vs Infiniti QX55

MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.

Swap sides
✓ Cheaper to run
$2,469/ year to fuel
24 MPG
✓ Cheaper to run
$2,370/ year to fuel
25 MPG

AWD · 2.0L 4-cyl turbo · CVT · 25 MPG

The 2022 Infiniti QX55 is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,370 a year to fuel (25 MPG), versus $2,469 for the 2022 Acura RDX (24 MPG). That's roughly $99 a year, or about $494 over five years.

Your numbers

Change these to match your driving and local prices. Every figure and chart on this page updates.

Fuel cost over 10 years

  • Acura RDX
  • Infiniti QX55

Side by side

Acura RDXInfiniti QX55
$2,469 Your annual fuel cost $2,370
24 MPG Combined efficiency 25 MPG
22 MPG City 22 MPG
28 MPG Highway 28 MPG
370 g/mi Tailpipe CO₂ (g/mi) 364 g/mi
5/10 EPA fuel economy score 5/10
5/10 EPA greenhouse gas score 5/10
Gas Powertrain Gas
Premium gasoline Fuel Premium gasoline
2.0L 4-cyl turbo Engine / motor 2.0L 4-cyl turbo
10-speed automatic Transmission CVT
FWD Drivetrain AWD

✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.

Acura RDX vs Infiniti QX55 across model years

  • Acura RDX
  • Infiniti QX55

Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.

How they differ

Among 106 2022 small SUVs, the Acura RDX ranks 90th and the Infiniti QX55 89th for lowest fuel cost.

Frequently asked questions

Which is more fuel-efficient, the 2022 Acura RDX or the 2022 Infiniti QX55?

Measured by cost to drive, the Infiniti QX55. The Acura RDX is rated 24 MPG combined and the Infiniti QX55 25 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2022 Acura RDX vs. the Infiniti QX55 per year?

At 15,000 miles a year with $3.95/gal premium gas, about $2,469 for the Acura RDX and $2,370 for the Infiniti QX55.

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