The BMW 750i does 18.2 mpg combined (15.7 city, 23.1 highway), which works out to about $2,110 a year in fuel at $3.20 a gallon and 12,000 miles. Engine choice matters more than you'd think: 4.4L 8-cyl does 19 mpg while 5L 12-cyl does 12 — a difference of $1,179 a year. Against other V8 cars it sits above the average of 16.1 mpg.
Every BMW 750i engine, compared
Gas mileage on the BMW 750i ranges from 19 down to 12 depending on which engine sits under the bonnet — a spread of $1,179 a year across 4 versions of the same car. Picking the right one often saves more fuel than picking a different car altogether. Yearly cost assumes 12,000 miles at $3.20 a gallon.
| Engine | Combined | City / Highway | Years | Fuel per year |
|---|---|---|---|---|
| 4.4L 8-cyl | 16.5 / 24.1 | 2009–2022 | $2,021 | |
| 4.8L 8-cyl | 15 / 23 | 2006–2008 | $2,133 | |
| 5.4L 12-cyl | 12 / 18 | 2001–2001 | $2,743 | |
| 5L 12-cyl | 11 / 15 | 1991–1991 | $3,200 |
What that actually costs
The BMW 750i burns a gallon every 18.2 miles, so 12,000 miles takes about 659 gallons a year. At $3.20 that is what the table below adds up to.
| Measure | Value |
|---|---|
| Cost per mile | $0.176 |
| Fuel per year | $2,110 |
| Fuel over five years | $10,550 |
| Against other V8 cars | −$275 a year |
| EPA's own estimate | $4,308 a year |
City or highway — who is this car for
The BMW 750i gives up 7.4 mpg the moment you leave the motorway — 23.1 out there against 15.7 in town, a 47% drop worth $784 a year. A wide gap punishes stop-and-start traffic; a narrow one means the car doesn't care where you drive it.
| Measure | Value | Reading |
|---|---|---|
| City | 15.7 mpg | $2,446 a year if you only drive in town |
| Highway | 23.1 mpg | $1,662 a year if you mostly commute |
| Gap | +7.4 mpg (47%) | Wide — this car dislikes traffic |
How the 750i changed over the years
The 750i peaked in 2019 at 21 mpg (18 city, 26 highway) and was at its thirstiest in 1991 at 12 — 9 mpg apart, or $1,371 a year in fuel between buying one year and the other. The 2022 car does 19. Jumps usually mark a new generation or a new engine; dips often mean a heavier body or added all-wheel drive.
| Model year | Combined | City / Highway | Engines offered | Fuel per year |
|---|---|---|---|---|
| 2022 | 17 / 24 | 1 | $2,021 | |
| 2021 | 17 / 24 | 1 | $2,021 | |
| 2020 | 17 / 25 | 1 | $1,920 | |
| 2019 | 18 / 26 | 1 | $1,829 | |
| 2018 | 17 / 25 | 1 | $1,920 | |
| 2017 | 17 / 26 | 1 | $1,920 | |
| 2016 | 17 / 25 | 1 | $1,920 | |
| 2015 | 17 / 25 | 1 | $1,920 | |
| 2014 | 17 / 25 | 1 | $1,920 | |
| 2013 | 17 / 24 | 1 | $2,021 | |
| 2012 | 15 / 22 | 1 | $2,259 | |
| 2011 | 15 / 22 | 1 | $2,259 | |
| 2010 | 15 / 22 | 1 | $2,259 | |
| 2009 | 15 / 22 | 1 | $2,259 | |
| 2008 | 15 / 23 | 1 | $2,133 | |
| 2007 | 15 / 23 | 1 | $2,133 | |
| 2006 | 15 / 23 | 1 | $2,133 | |
| 2001 | 12 / 18 | 1 | $2,743 | |
| 1991 | 11 / 15 | 1 | $3,200 |
MPG is a number. Dollars per year is the answer.
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How we count
This page rests on 19 EPA ratings of the BMW 750i — 4 engines across 1991–2022. The mileage is EPA's laboratory figure, unchanged; the yearly bill is ours, at 12,000 miles and $3.20 a gallon, against EPA's own estimate of $4,308. Full method.
Frequently asked questions
What mpg does the BMW 750i get?
18.2 mpg combined on average — 15.7 in the city and 23.1 on the highway, per EPA ratings across 1991–2022.
How much does a BMW 750i cost in fuel per year?
About $2,110 at 12,000 miles and $3.20 a gallon — roughly $10,550 over five years, or 0.176 dollars a mile.
Which 750i engine is the most economical?
The 4.4L 8-cyl at 19 mpg, against 12 for the 5L 12-cyl — a difference of about $1,179 a year.
Is the 750i good on fuel compared with similar cars?
Against other V8 cars it sits above the average of 16.1 mpg, computed across 3323 ratings.
Are these real-world 750i figures?
No — they are EPA laboratory ratings, the same ones printed on the window sticker, and EPA's own annual fuel estimate for the BMW 750i is $4,308 against the $2,110 we compute at 12,000 miles. Expect a little worse in practice: the spread between the 21 and 12 mpg versions of this car is smaller than the spread between two drivers of the same one.
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