Against 500 other 4-cyl cars rated 2016–2018, the 328d beats their 27.3 mpg average by 8.7 mpg, about $340 a year.
Every BMW 328d engine, compared
The BMW 328d was rated in a single specification, so its gas mileage does not vary by version — only by model year. Yearly cost assumes 12,000 miles at $3.20 a gallon.
| Engine | Combined | City / Highway | Years | Fuel per year |
|---|---|---|---|---|
| 2L 4-cyl | 31 / 42.8 | 2014–2018 | $1,073 |
What that actually costs
Against its rivals in the same model years, the Toyota Corolla gets 34.7 mpg, the Lexus IS 24 mpg and the Acura TLX 25.8 mpg, next to 36 mpg for the 2018 328d. The 328d is the cheapest of them to run: $533 a year less than the Lexus IS.
| Measure | Value |
|---|---|
| Cost per mile (2018) | $0.089 |
| Fuel per year | $1,067 |
| Fuel over five years | $5,335 |
| Against other 4-cyl cars, 2016–2018 | −$340 a year |
| EPA's own estimate | $2,170 a year |
City or highway — who is this car for
The 2018 BMW 328d gives up 12 mpg in town: 43 on the highway against 31 in the city, $346 a year if every mile were city driving.
| Measure | Value | Reading |
|---|---|---|
| City (2018) | 31 mpg | $1,239 a year if you only drive in town |
| Highway | 43 mpg | $893 a year if you mostly commute |
| Gap | +12 mpg (39%) | Wide — this car dislikes traffic |
How the 328d changed over the years
The 328d peaked in 2018 at 36 mpg (31 city, 43 highway) and was at its thirstiest in 2016 at 35 — 1 mpg apart, or $30 a year in fuel between buying one year and the other.
| Model year | Combined | City / Highway | Engines offered | Fuel per year |
|---|---|---|---|---|
| 2018 | 31 / 43 | 1 | $1,067 | |
| 2017 | 31 / 43 | 1 | $1,067 | |
| 2016 | 31 / 42 | 1 | $1,097 | |
| 2015 | 31 / 43 | 1 | $1,067 | |
| 2014 | 31 / 43 | 1 | $1,067 |
MPG is a number. Dollars per year is the answer.
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How we count
This page rests on 5 EPA ratings of the BMW 328d — 1 engine across 2014–2018. 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 $2,170. Full method.
Frequently asked questions
What mpg does the 2018 BMW 328d get?
36 mpg combined, 31 city and 43 highway, per EPA. Across every year since 2014 the 328d has averaged 35.8 mpg.
Is the 2018 328d more efficient than the 2017?
About the same: 36 against 36 mpg combined.
Which 328d year has the best gas mileage?
The 2018, at 36 mpg combined (31 city, 43 highway), which is also the latest model year we hold.
Does the 328d get better gas mileage than the Toyota Corolla?
Yes: 36 mpg for the 2018 328d against 34.7 for the 2019 Toyota Corolla, about $40 a year less to run.
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