2020 · Midsize Car · Gas

2020 Lexus GS MPG & fuel economy

The 2020 Lexus GS is a midsize car offered in 4 EPA-rated configurations. The most efficient version returns 23 MPG combined (20 city / 28 highway) on premium gasoline. Across the lineup, combined ratings range from 19 to 23 MPG. That's down 3 MPG from the 2019 model. Among 64 midsize cars rated for 2020, it ranks 55th for lowest fuel cost. At 15,000 miles a year with $3.95/gal premium gas, it costs about $2,576 a year to fuel.

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Combined 23 MPG 20 MPG city · 28 MPG hwy

Driving range — not published for this model

Your fuel cost $2,576 15,000 mi/yr · $17.17 per 100 mi

Class rank, 2020 #55 of 64 Midsize Cars by fuel cost

What will it cost you?

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

Miles per year Premium gas $/gal

Fuel average

The 2020 Lexus GS's fuel average is 9.8 km/L (10.2 L/100 km), or 23 MPG combined: 8.5 km/L in the city and 11.9 km/L on the highway.

	MPG	km/L	L/100 km
City	20	8.5	11.8
Highway	28	11.9	8.4
Combined	23	9.8	10.2

How it ranks among 2020 Midsize Cars

Full class ranking →

1Tesla Model 3141 MPGe $648
2Hyundai Ioniq EV133 MPGe $686
3Toyota Prius Prime133 MPGe + 54 MPG $763
4Hyundai Ioniq Plug-in Hybrid119 MPGe + 52 MPG $815
5Nissan Leaf111 MPGe $821
···
55Lexus GS23 MPG $2,576
···
64Honda Clarity68 MPGe $7,941

2020 GSOther midsize carsClass median: $1,755/yr

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

GS MPG across model years

Full history →

4 EPA-rated configurations

Configuration	Type	City	Hwy	Combined	Range	Your cost / yr
RWD · 3.5L 6-cyl · 8-speed automatic GS 350	Gas	20 MPG	28 MPG	23 MPG	—	$2,576
RWD · 3.5L 6-cyl · 8-speed automatic GS 350 F Sport	Gas	19 MPG	27 MPG	22 MPG	—	$2,693
AWD · 3.5L 6-cyl · 6-speed automatic GS 350 AWD	Gas	19 MPG	26 MPG	21 MPG	—	$2,821
RWD · 5.0L 8-cyl · 8-speed automatic GS F	Gas	16 MPG	24 MPG	19 MPG	—	$3,118

Specs (most efficient configuration)

Fuel: Premium gasoline
Engine / motor: 3.5L 6-cyl
Transmission: 8-speed automatic
Drivetrain: RWD
Passenger volume: 99 cu ft
Cargo volume: 14 cu ft
Tailpipe CO₂: 388 g/mi
EPA fuel economy score: 5/10
EPA greenhouse gas score: 5/10

2020 Lexus GS vs. rivals

vs Infiniti Q50 23 MPG · $2,576/yr Same fuel cost vs Acura RLX 23 MPG · $2,576/yr Same fuel cost vs Audi S6 Hybrid 22 MPG · $2,693/yr GS saves $117/yr vs Cadillac CT5 26 MPG · $2,279/yr CT5 saves $297/yr vs Audi A7 Hybrid 24 MPG · $2,469/yr A7 Hybrid saves $107/yr vs Mercedes-Benz E-Class 26 MPG · $2,279/yr E-Class saves $297/yr vs Audi S7 Hybrid 22 MPG · $2,693/yr GS saves $117/yr vs Maserati Ghibli 19 MPG · $3,118/yr GS saves $542/yr vs Rolls-Royce Wraith 14 MPG · $4,232/yr GS saves $1,656/yr

Compare the 2020 GS

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

Frequently asked questions

What is the gas mileage of the 2020 Lexus GS?

Up to 23 MPG combined (20 city / 28 highway); ratings range from 19 to 23 MPG depending on configuration.

What fuel does the 2020 Lexus GS use?

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

What is the fuel average in km/L for the 2020 Lexus GS?