Lexus averages 24.4 mpg combined across 17 models (1990–2026). The best on record does 127 mpg, the thirstiest 13 — a yearly fuel gap of about $2,652.
What that actually costs
What a Lexus costs to feed, at 12,000 miles a year and $3.20 a gallon.
| Measure | Value |
|---|---|
| Average combined | 24.4 mpg |
| Fuel per year | $1,574 |
| Most frugal on record | 127 mpg — $302 a year |
| Thirstiest on record | 13 mpg — $2,954 a year |
Lexus models by fuel economy
From the most frugal down. The yearly figure is what the fuel actually costs at 12,000 miles.
| Model | Average mpg | Best / Worst engine | Fuel per year |
|---|---|---|---|
| Lexus RZ | 126 / 107 | $318 | |
| Lexus CT | 42 / 42 | $914 | |
| Lexus UX | 43 / 32 | $985 | |
| Lexus HS | 35 / 34 | $1,120 | |
| Lexus NX | 40 / 24 | $1,267 | |
| Lexus ES | 127 / 18 | $1,297 | |
| Lexus TX | 29 / 23 | $1,518 | |
| Lexus RX | 36 / 18 | $1,530 | |
| Lexus LC | 30 / 18 | $1,620 | |
| Lexus RC | 26 / 19 | $1,730 | |
| Lexus IS | 26 / 18 | $1,738 | |
| Lexus GS | 31 / 18 | $1,770 | |
| Lexus LS | 28 / 18 | $1,846 | |
| Lexus SC | 19 / 18 | $2,076 | |
| Lexus GX | 17 / 15 | $2,385 | |
| Lexus LX | 20 / 13 | $2,560 | |
| Lexus LFA | 13 / 13 | $2,954 |
MPG is a number. Dollars per year is the answer.
- Fuel profile built from your actual mileage and local prices
- Fuel tracker: what you really spend, month by month
- Insurance and fuel folded into 5-year cost to own
- Compare any two cars on total cost, not sticker price
- No ads, no tracking — and much more
How we count
Fuel-economy figures come from EPA fueleconomy.gov — the same laboratory numbers printed on the window sticker. We don't adjust them; real-world consumption depends on how and where you drive.
What we add is money. Yearly cost assumes 12,000 miles at $3.20 a gallon — change either and the ranking stays, only the size of the bill moves. Cost per mile is the same figure divided out, useful when comparing a commute against a weekend car.
Frequently asked questions
What is the average Lexus mpg?
24.4 mpg combined across 17 models rated between 1990 and 2026. That averages everything the brand has offered, so a long history of trucks pulls it down.
Which Lexus model is the most economical?
See the table above — models are sorted from the most frugal down, with what each costs in fuel per year.
How much does a Lexus cost to run?
About $1,574 a year in fuel on average, at 12,000 miles and $3.20 a gallon.
Why does the average look low for a modern brand?
Because it covers every model year on record, back to the 1980s. Cars built before the mid-2000s were markedly thirstier — that era is included.