2015 Lexus LX — Full Specifications

Reviewed by the 247VehicleCheck Data Team — automotive data reviewers

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17Combined MPG (UK)
5.7L 8-cylEngine
Premium GasolineFuel Type
$5,850Est. Annual Fuel (US EPA)
N/ANHTSA Safety
385CO₂ g/km

The 2015 Lexus LX is an SUV powered by a 5.7L 8-cyl premium gasoline engine. It returns around 17 mpg (UK) / 14 mpg (US EPA) combined. Owners often keep a Lexus LX workshop manual to hand for servicing and repairs.

Compared with the 2014 Lexus LX: Fuel economy is essentially unchanged at around 17 mpg (UK) combined. The engine line-up listed by EPA is unchanged.

Full Specifications

Engine5.7L 8-cyl
TransmissionAutomatic (S6)
Fuel TypePremium Gasoline
PowertrainConventional
Drive4-Wheel Drive
Body StyleSUV
Fuel Economy (UK)17 combined / 14 urban / 20 extra-urban mpg
Fuel Economy (US EPA)14 combined / 12 city / 17 highway mpg
CO₂ Emissions385 g/km
EPA Greenhouse Gas Score2 / 10 (10 = lowest emissions)
EPA Est. Annual Fuel Cost$5,850 (15,000 mi/yr, US prices)

Engine & Transmission Options

EPA lists 1 configuration for the 2015 Lexus LX, all with the 5.7L 8-cyl engine. The headline figures at the top of this page describe the most fuel-efficient configuration.

EngineTransmissionDriveMPG (UK)MPG (US)CO₂ g/kmFuel cost / yr
5.7L 8-cylAutomatic (S6)4-Wheel Drive 17 14 (12/17) 385$5,850

MPG (US) shows combined, with city/highway in brackets. Highlighted row = the configuration used for the headline figures. Source: US EPA fueleconomy.gov.

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Running Costs: 2015 Lexus LX

Covering around 8,000 miles a year in a 2015 Lexus LX at 17 mpg combined, expect roughly 2,139 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $5,850 a year in fuel for the most efficient configuration (15,000 miles, national average prices). Work out exact fuel costs with the fuel cost calculator on 247Calculators.

Convert between MPG and L/100km with the unit converters on 247QuickTools. Not sure what tyre size fits? 247TyreCheck explains tyre sizing.

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2015 Lexus LX Safety Ratings (NHTSA)

No NHTSA crash-test rating is on record for this model year. The NHTSA rates only a subset of vehicles each year; you can browse every rated vehicle on our NHTSA Safety Ratings hub.

How It Compares

How does the Lexus LX compare to similar SUVs? For context, SUVs in our database average around 27 mpg (UK) combined — this model's 17 mpg figure is 10 mpg below that average. Its 385 g/km CO₂ figure is 132 g/km higher than the 253 g/km average for SUVs on this site. This comparison is based on 1824 SUVs in our dataset.

Lexus models in our database average about 28 mpg (UK) combined on their most efficient configuration; the 2015 Lexus LX's 17 mpg is 11 mpg below that make average. Its 385 g/km CO₂ figure is 133 g/km higher than the 252 g/km Lexus average.

Of the 16 Lexus LX model years we cover, the 2015 ranks 10th for combined fuel economy on its best configuration (17 mpg UK combined, against a high of 23 mpg). See every Lexus LX year side by side.

Last updated: · Data: US EPA (fueleconomy.gov) and NHTSA safety ratings 18 July 2026; NHTSA recalls and complaints 6 October 2026; Wikidata & curated EU catalogue 18 July 2026; European generation and engine data from Wikipedia 7 October 2026

Vehicle data sourced from manufacturer specifications. Always verify with your vehicle handbook or a qualified mechanic. This is a reference tool, not professional advice.

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Frequently Asked Questions

What engine does the 2015 Lexus LX have?

It's fitted with a 5.7L 8-cyl premium gasoline engine, paired with a automatic (s6) transmission.

What is the fuel economy of the 2015 Lexus LX?

The most efficient configuration returns around 17 mpg (UK) combined, or 14 mpg on the US EPA cycle.

How much does the 2015 Lexus LX cost to fuel per year?

The US EPA estimates about $5,850 a year in fuel for the most efficient configuration, based on 15,000 miles of mixed driving and national average fuel prices. Your own cost will depend on mileage and local prices.

Is the Lexus LX's fuel economy good for an SUV?

It returns around 17 mpg (UK) combined, against a same-body-style average of roughly 27 mpg among the SUVs we track.

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