2018 Lexus GS Specs, MPG & Trims

EPA fuel-economy data and specifications for the 2018 Lexus GS (19–31 MPG combined) across 7 listed configurations.

Overview

Body class
Midsize Cars, Compact Cars
Drive
Rear-Wheel Drive, All-Wheel Drive
Engine
6-cyl, 3.5 L; 4-cyl, 2.0 L; 8-cyl, 5.0 L
Fuel type
Premium Gasoline
Combined MPG
19–31 MPG
Annual fuel cost
$2,650–$4,350
Configurations
7

MPG & fuel economy

City, highway and combined values below are EPA estimates. Where a powertrain has several configurations, the table shows the lowest–highest reported value. Electric configurations use MPGe.

EPA city, highway and combined ratings by powertrain for the 2018 Lexus GS. Electric configurations are rated in MPGe.
PowertrainCityHighwayCombinedAnnual fuel costCO2
6-cyl 3.5 L · Premium Gasoline · All-Wheel Drive192622$3,750407 g/mi
4-cyl 2.0 L · Premium Gasoline · Rear-Wheel Drive21–2230–3224–26$3,150–$3,400345–368 g/mi
6-cyl 3.5 L · Premium Gasoline · Rear-Wheel Drive19–2927–3422–31$2,650–$3,750283–405 g/mi
8-cyl 5.0 L · Premium Gasoline · Rear-Wheel Drive162419$4,350472 g/mi

Configurations & engine comparison

Each row is one configuration/engine combination reported by the EPA for this model year. Missing EPA values are shown as —.

Every EPA-listed configuration for the 2018 Lexus GS (7 rows). "Configuration" is the EPA configuration/engine name.
Configuration / engineDriveTransmissionCyl.Displ. (L)Fuel typeCityHwyComb.Annual cost
GS 300Rear-Wheel DriveAutomatic (S8)42.0Premium Gasoline223226$3,150
GS 300 F SportRear-Wheel DriveAutomatic (S8)42.0Premium Gasoline213024$3,400
GS 350Rear-Wheel DriveAutomatic (S8)63.5Premium Gasoline202823$3,550
GS 350 AWDAll-Wheel DriveAutomatic (S6)63.5Premium Gasoline192622$3,750
GS 350 F SportRear-Wheel DriveAutomatic (S8)63.5Premium Gasoline192722$3,750
GS 450hRear-Wheel DriveAutomatic (AV-S8)63.5Premium Gasoline293431$2,650
GS FRear-Wheel DriveAutomatic (S8)85.0Premium Gasoline162419$4,350

Frequently asked questions

What is the combined MPG of the 2018 Lexus GS?

According to EPA data, the 2018 Lexus GS is rated at 19–31 MPG combined for its conventional-fuel configurations.

How many cylinders does the 2018 Lexus GS have?

The EPA data lists 4, 6, and 8 cylinders across its configurations.

What fuel type does the 2018 Lexus GS use?

It uses Premium Gasoline.

What is the annual fuel cost of the 2018 Lexus GS?

The EPA estimates annual fuel costs ranging from $2,650 to $4,350.