2021 · Midsize & Large SUV · Gas

2021 Lexus GX MPG & fuel economy

The 2021 Lexus GX is a midsize or large SUV with one EPA-rated configuration. The most efficient version returns 16 MPG combined (15 city / 19 highway) on premium gasoline. Efficiency is unchanged from the 2020 model. Among 65 midsize & large SUVs rated for 2021, it ranks 59th for lowest fuel cost. At 15,000 miles a year with $3.95/gal premium gas, it costs about $3,703 a year to fuel.

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Combined 16 MPG 15 MPG city · 19 MPG hwy
Driving range — not published for this model
Your fuel cost $3,703 15,000 mi/yr · $24.69 per 100 mi
Class rank, 2021 #59 of 65 Midsize & Large SUVs by fuel cost

What will it cost you?

Your mileage and prices are saved and used across the site.

Fuel average

The 2021 Lexus GX's fuel average is 6.8 km/L (14.7 L/100 km), or 16 MPG combined: 6.4 km/L in the city and 8.1 km/L on the highway.

MPGkm/LL/100 km
City156.415.7
Highway198.112.4
Combined166.814.7

How it ranks among 2021 Midsize & Large SUVs

Full class ranking →
  1. 1Tesla Model X105 MPGe $864
  2. 2Audi e-tron78 MPGe $1,172
  3. 3Toyota Highlander Hybrid36 MPG $1,292
  4. 4Ford Explorer Hybrid27 MPG $1,722
  5. 5Lincoln Aviator Plug-in Hybrid56 MPGe + 23 MPG $1,833
  6. 59Lexus GX16 MPG $3,703
  7. 65Lamborghini Urus14 MPG $4,232
2021 GXOther midsize & large SUVsClass median: $2,583/yr

Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.

GX MPG across model years

Full history →

1 EPA-rated configuration

ConfigurationTypeCityHwyCombinedRangeYour cost / yr
4WD · 4.6L 8-cyl · 6-speed automatic
GX 460		 Gas 15 MPG 19 MPG 16 MPG — $3,703

Specs (most efficient configuration)

Fuel
Premium gasoline
Engine / motor
4.6L 8-cyl
Transmission
6-speed automatic
Drivetrain
4WD
Tailpipe CO₂
542 g/mi
EPA fuel economy score
2/10
EPA greenhouse gas score
2/10

2021 Lexus GX vs. rivals

vs Infiniti QX80 16 MPG · $3,703/yr Same fuel cost vs BMW X7 17 MPG · $3,485/yr X7 saves $218/yr vs Cadillac Escalade 17 MPG · $3,485/yr Escalade saves $218/yr vs Audi SQ7 17 MPG · $3,485/yr SQ7 saves $218/yr vs Audi SQ8 17 MPG · $3,485/yr SQ8 saves $218/yr vs Audi RS Q8 15 MPG · $3,950/yr GX saves $247/yr vs Aston Martin DBX V8 15 MPG · $3,950/yr GX saves $247/yr vs Lamborghini Urus 14 MPG · $4,232/yr GX saves $529/yr

Compare the 2021 GX

With any other car from any year, including other GX model years. Type a year to jump, e.g. "2015 Accord".

Frequently asked questions

What is the gas mileage of the 2021 Lexus GX?

Up to 16 MPG combined (15 city / 19 highway).

What fuel does the 2021 Lexus GX use?

Premium gasoline (premium is required or recommended by the manufacturer).

What is the fuel average in km/L for the 2021 Lexus GX?

The 2021 Lexus GX's fuel average is 6.8 km/L (14.7 L/100 km), or 16 MPG combined: 6.4 km/L in the city and 8.1 km/L on the highway.

How much does it cost to fuel the 2021 Lexus GX per year?

About $3,703 at 15,000 miles a year with $3.95/gal premium gas, or $24.69 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.

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