MPGTerminal
29/100
2018Standard Sport Utility Vehicle 4WDPremium

2018 Lexus GX 460

EPA ID: 39406
15
City MPG
16
Combined MPG
16MPG· Below Avg
18
Highway MPG

Fuel Economy Overview

The 2018 Lexus GX 460 achieves an EPA-estimated 16 MPG in combined city and highway driving, with 15 MPG in the city and 18 MPG on the highway. Powered by a 4.6L 8-cylinder engine paired with a automatic (s6), this standard sport utility vehicle 4wd features 4-Wheel Drive drive.

In terms of environmental impact, the 2018 GX 460 produces approximately 548 grams of CO2 per mile. This figure is measured under standardized EPA test conditions and represents tailpipe emissions only. For context, the average new vehicle sold in the United States produces approximately 400 grams of CO2 per mile, meaning this GX 460 has higher-than-average emissions in this regard.

The estimated annual fuel cost for this vehicle is $4,300, based on 15,000 miles of driving per year and current national average fuel prices. Compared to the average new vehicle, you would save $10,750 over a 5-year period. This calculation accounts for differences in fuel consumption efficiency and provides a practical measure of long-term ownership costs attributable to fuel economy.

Energy DNA

Vehicle ClassStandard Sport Utility Vehicle 4WD
Fuel TypePremium
Engine4.6L 8-cyl
AspirationNaturally Aspirated
TransmissionAutomatic (S6)
Drive Type4-Wheel Drive

Green Scorecard

CO2 Emissions548 g/mi
Start-Stop SystemNot Equipped
GHG Score2/10
Smog RatingN/A
Est. Annual Cost$4,300
5-Year Cost DeltaSave $10,750

Personalized Commute CalculatorEPA defaults to 55% City / 45% Hwy

55% City45% Highway

Adjust the slider to match your daily driving habits. City driving involves stop-and-go traffic under 45mph, while highway driving represents sustained speeds over 55mph.

Your Real MPG
16.2
Impact vs EPA
$-44
/ year
💨

The Brick Effect: Highway Speed Penalty

EPA highway tests average roughly 48 mph. Driving at 75 mph increases aerodynamic drag exponentially. Because the Standard Sport Utility Vehicle 4WD has a large frontal area, expect your real-world highway fuel economy to drop by up to 25% at high speeds.

5-Year Total Cost of Ownership

Estimated Monthly Cost
$955/mo
Includes estimated depreciation, fuel, insurance, and state fees over 5 years. Does not include loan interest.
15,000 mi
Value Depreciation
Est. value lost over 60 months
$26,460
46.2%
Fuel & Electricity
Based on National Average rates ($3.50/gal)
$16,406
28.6%
Estimated Insurance
Based on vehicle class risk profile
$14,025
24.5%
State Registration Fees
Based on National Average DMV base rates
$400
0.7%
Total 5-Year Cost$57,291

Recall Intelligence

✓ No recalls have been issued for this vehicle configuration.

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Looking for comprehensive historical data?

NHTSA FARS (Fatal Crash History) and broader generational safety trends are aggregated at the model level rather than by specific engine configurations. View the complete historical data profile for all Lexus GX 460 configurations.

View Model History

Similar 2018 Standard Sport Utility Vehicle 4WD Alternatives

2018 BMW X5 M

4.4L 8-cyl All-Wheel Drive

16MPG
City: 14Hwy: 19$4,300/yr

2018 BMW X6 M

4.4L 8-cyl All-Wheel Drive

16MPG
City: 14Hwy: 19$4,300/yr

2018 GMC Yukon K1500 XL 4WD

6.2L 8-cyl 4-Wheel Drive

16MPG
City: 14Hwy: 21$4,300/yr

2018 Land Rover Range Rover SVA

5L 8-cyl 4-Wheel Drive

16MPG
City: 14Hwy: 19$4,300/yr

2018 Land Rover Range Rover Sport SVR

5L 8-cyl 4-Wheel Drive

16MPG
City: 15Hwy: 20$4,300/yr

2018 Maserati Levante

3L 6-cyl All-Wheel Drive

16MPG
City: 14Hwy: 20$4,300/yr

Fuel Cost Analysis

Annual Fuel Cost$4,300
vs. Avg Vehicle (5 yrs)Save $10,750

Based on 15,000 miles/year and current fuel prices.

Efficiency Breakdown

City15 MPG
Highway18 MPG
Combined16 MPG

Estimated Lifetime Carbon Footprint

(Based on 200,000 miles driven)

109.6 metric tons CO₂
Equivalent To:
🌳 136 tree seedlings grown for 10 yrs
✈️ 9.1 cross-country flights/yr

Data Provenance

Data directly from the EPA National Vehicle and Fuel Emissions Laboratory. The combined rating is a weighted average (55% city, 45% highway). For official figures, visit fueleconomy.gov.