2018 Toyota Highlander LE/XLE/SE/LTD MPG and Fuel Economy

On this page, you will find a complete guide to the miles per gallon and fuel efficiency data for the 2018 Toyota Highlander LE/XLE/SE/LTD.

The 2018 Toyota Highlander LE/XLE/SE/LTD runs on regular gasoline and is in the Small Sport Utility Vehicle 2WD car class.

Whether you are considering a purchase of the car, or just wanting to find out how economical and environmentally friendly (or un-friendly) your 2018 Toyota Highlander LE/XLE/SE/LTD is, we have the information you need.

🛣 How Many Miles per Gallon (MPG) Does a 2018 Toyota Highlander LE/XLE/SE/LTD Get?

First off, the most commonly asked question. A 2018 Toyota Highlander LE/XLE/SE/LTD gets up to 21 miles per gallon in the city, and 27 miles per gallon on the highway.

The combined average MPG for the 2018 Toyota Highlander LE/XLE/SE/LTD is 23 miles per gallon.

💵 What is the Average Yearly Fuel Cost for a 2018 Toyota Highlander LE/XLE/SE/LTD?

The estimated fuel costs for the 2018 Toyota Highlander LE/XLE/SE/LTD is $2,700 per year.

That value has been estimated by government regulators based on 15,000 miles driven per year, using regular gasoline, and a split of 55% city driving and 45% highway driving.

If you were to compare a 2018 Toyota Highlander LE/XLE/SE/LTD to an average vehicle over 5 years, you will spend $2,000 more on fuel.

🛢 How Many Barrels of Petroleum Does a 2018 Toyota Highlander LE/XLE/SE/LTD Consume?

The 2018 Toyota Highlander LE/XLE/SE/LTD will consume roughly 13 barrels of petroleum per year, using the standard estimate of 15,000 miles per year.

The majority of the world's petroleum is sourced from countries like Saudi Arabia, Russia, Iraq, and the United States.

💨 How Many Grams of CO2 Does a 2018 Toyota Highlander LE/XLE/SE/LTD Emit?

For every mile driven, the 2018 Toyota Highlander LE/XLE/SE/LTD will emit 384 grams of CO2, which is about 5,760,000 grams of CO2 per year.

🌳 To help you understand the impact of this, a normal tree will absorb around 21,000 grams of CO2 per year. This means that roughly 196 trees would be needed to offset emissions from the 2018 Toyota Highlander LE/XLE/SE/LTD.

Overview

The table below covers all of the miles per gallon, engine specifications, and emission details we have for the 2018 Toyota Highlander LE/XLE/SE/LTD.

City MPG21
Highway MPG27
Combined MPG23
Save/Spend vs Average CarSpend $2,000
Fuel Cost$2,700
Fuel Type 1Regular
Barrels of Petroleum13
Grams of CO25,760,000
Trees Needed to Offset274
DriveFront-Wheel Drive
Cylinders6
Displacement3.5
TransmissionAutomatic (S8)
Vehicle ClassSmall Sport Utility Vehicle 2WD
Start/Stop?Yes
Supercharged?No
Turbocharged?No

Related Toyota Models from 2018

If you're interested in other Toyota models from 2018, you can find them in the table below. You can click the model link to find miles per gallon and emission information for that model.

ModelCombined MPG
4Runner 2WD18
4Runner 4WD18
4Runner 4WD18
8627
8624
Avalon24
Avalon Hybrid40
C-HR29
Camry34
Camry26
Camry Hybrid LE52
Camry Hybrid XLE/SE46
Camry LE/SE32
Camry XLE/XSE32
Camry XSE26
Corolla32
Corolla31
Corolla30
Corolla iM31
Corolla iM30

Link To or Reference This Page

If you use this page in your research, please reference MPG Buddy as the source.

  • "2018 Toyota Highlander LE/XLE/SE/LTD MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/toyota/highlander-le-xle-se-ltd/2018.

  • "2018 Toyota Highlander LE/XLE/SE/LTD MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/toyota/highlander-le-xle-se-ltd/2018. Accessed January 3, 2026.

  • 2018 Toyota Highlander LE/XLE/SE/LTD MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/toyota/highlander-le-xle-se-ltd/2018.