Against 332 other Hybrid cars rated 2023–2025, the A4 beats their 27.7 mpg average by 1.3 mpg, about $62 a year. Averaged over the years each was sold, the most economical engine since 1996, the 2L 4-cyl Hybrid (2021–2025), does 28.8 mpg and the thirstiest, the 2.8L 6-cyl (1996–2001), 20.3: $559 a year apart.
Every Audi A4 engine, compared
Yearly cost assumes 12,000 miles at $3.20 a gallon.
| Engine | Combined | City / Highway | Years | Fuel per year |
|---|---|---|---|---|
| 2L 4-cyl Hybrid | 25.4 / 34.4 | 2021–2025 | $1,333 | |
| 2L 4-cyl | 23.6 / 31.6 | 2005–2020 | $1,449 | |
| 1.8L 4-cyl | 19.9 / 28.3 | 1997–2004 | $1,670 | |
| 3L 6-cyl | 18 / 25.8 | 2002–2005 | $1,846 | |
| 3.1L 6-cyl | 17.8 / 26.5 | 2006–2009 | $1,846 | |
| 2.8L 6-cyl | 17.3 / 25.5 | 1996–2001 | $1,892 |
What that actually costs
Against its rivals in the same model years, the Toyota Corolla gets 42.5 mpg, the Lexus IS 22.6 mpg and the Nissan Versa 35 mpg, next to 29 mpg for the 2025 A4.
| Measure | Value |
|---|---|
| Cost per mile (2025) | $0.110 |
| Fuel per year | $1,324 |
| Fuel over five years | $6,620 |
| Against other Hybrid cars, 2023–2025 | −$62 a year |
| EPA's own estimate | $3,241 a year |
City or highway — who is this car for
The 2025 Audi A4 gives up 10 mpg in town: 36 on the highway against 26 in the city, $410 a year if every mile were city driving.
| Measure | Value | Reading |
|---|---|---|
| City (2025) | 26 mpg | $1,477 a year if you only drive in town |
| Highway | 36 mpg | $1,067 a year if you mostly commute |
| Gap | +10 mpg (38%) | Wide — this car dislikes traffic |
How the A4 changed over the years
The A4 peaked in 2018 at 31 mpg (27 city, 37 highway) and was at its thirstiest in 1996 at 20 — 11 mpg apart, or $681 a year in fuel between buying one year and the other. The 2025 car does 29. The biggest single-year change came in 2017: 27 to 31 mpg.
| Model year | Combined | City / Highway | Engines offered | Fuel per year |
|---|---|---|---|---|
| 2025 | 26 / 36 | 1 | $1,324 | |
| 2024 | 26 / 35 | 1 | $1,280 | |
| 2023 | 24 / 33 | 1 | $1,371 | |
| 2022 | 26 / 34 | 1 | $1,324 | |
| 2021 | 25 / 34 | 1 | $1,371 | |
| 2020 | 27 / 35 | 1 | $1,280 | |
| 2019 | 27 / 34 | 1 | $1,280 | |
| 2018 | 27 / 37 | 1 | $1,239 | |
| 2017 | 27 / 37 | 1 | $1,239 | |
| 2016 | 24 / 31 | 1 | $1,422 | |
| 2015 | 24 / 31 | 1 | $1,477 | |
| 2014 | 23 / 31 | 1 | $1,477 | |
| 2013 | 24 / 31 | 1 | $1,477 | |
| 2012 | 22 / 30 | 1 | $1,536 | |
| 2011 | 22 / 30 | 1 | $1,536 | |
| 2010 | 23 / 30 | 1 | $1,477 | |
| 2009 | 20 / 27.5 | 2 | $1,707 | |
| 2008 | 19.5 / 28.5 | 2 | $1,707 | |
| 2007 | 19.5 / 28 | 2 | $1,707 | |
| 2006 | 19.5 / 28.5 | 2 | $1,707 | |
| 2005 | 20 / 28 | 2 | $1,670 | |
| 2004 | 19 / 26.5 | 2 | $1,745 | |
| 2003 | 19 / 26.5 | 2 | $1,745 | |
| 2002 | 18.5 / 27 | 2 | $1,829 | |
| 2001 | 18 / 26.5 | 2 | $1,829 | |
| 2000 | 19.5 / 27.5 | 2 | $1,707 | |
| 1999 | 19 / 27.5 | 2 | $1,707 | |
| 1998 | 19 / 28 | 2 | $1,745 | |
| 1997 | 17.5 / 26 | 2 | $1,873 | |
| 1996 | 17 / 25 | 1 | $1,920 |
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
This page rests on 43 EPA ratings of the Audi A4 — 6 engines across 1996–2025. 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 $3,241. Full method.
Frequently asked questions
What mpg does the 2025 Audi A4 get?
29 mpg combined, 26 city and 36 highway, per EPA. Across every year since 1996 the A4 has averaged 24.2 mpg.
Is the 2025 A4 more efficient than the 2024?
No: 29 against 30 mpg combined, about $44 a year more to run.
Which A4 year has the best gas mileage?
The 2018, at 31 mpg combined (27 city, 37 highway).
Does the A4 get better gas mileage than the Toyota Corolla?
No: 29 mpg for the 2025 A4 against 42.5 for the 2026 Toyota Corolla, about $420 a year more to run.
Mark ForCar as a preferred source and our data shows up first in your Google results. One click, no account.