The Volvo C30 does 23.7 mpg combined (20.5 city, 29.3 highway), which works out to about $1,620 a year in fuel at $3.20 a gallon and 12,000 miles. Engine choice matters more than you'd think: 2.5L 5-cyl does 23.8 mpg while 2.4L 5-cyl does 23 — a difference of $57 a year. Against other 5-cyl cars it sits above the average of 21.8 mpg.
Every Volvo C30 engine, compared
Gas mileage on the Volvo C30 ranges from 23.8 down to 23 depending on which engine sits under the bonnet — a spread of $57 a year across 2 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 |
|---|---|---|---|---|
| 2.5L 5-cyl | 20.6 / 29.6 | 2009–2013 | $1,613 | |
| 2.4L 5-cyl | 20 / 28 | 2008–2008 | $1,670 |
What that actually costs
The Volvo C30 burns a gallon every 23.7 miles, so 12,000 miles takes about 506 gallons a year. At $3.20 that is what the table below adds up to.
| Measure | Value |
|---|---|
| Cost per mile | $0.135 |
| Fuel per year | $1,620 |
| Fuel over five years | $8,100 |
| Against other 5-cyl cars | −$141 a year |
| EPA's own estimate | $2,742 a year |
City or highway — who is this car for
The Volvo C30 gives up 8.8 mpg the moment you leave the motorway — 29.3 out there against 20.5 in town, a 43% drop worth $562 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 | 20.5 mpg | $1,873 a year if you only drive in town |
| Highway | 29.3 mpg | $1,311 a year if you mostly commute |
| Gap | +8.8 mpg (43%) | Wide — this car dislikes traffic |
How the C30 changed over the years
The C30 peaked in 2013 at 24 mpg (21 city, 30 highway) and was at its thirstiest in 2009 at 23 — 1 mpg apart, or $70 a year in fuel between buying one year and the other. The 2013 car does 24. 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 |
|---|---|---|---|---|
| 2013 | 21 / 30 | 1 | $1,600 | |
| 2012 | 21 / 30 | 1 | $1,600 | |
| 2011 | 21 / 30 | 1 | $1,600 | |
| 2010 | 21 / 30 | 1 | $1,600 | |
| 2009 | 19 / 28 | 1 | $1,670 | |
| 2008 | 20 / 28 | 1 | $1,670 |
MPG is a number. Dollars per year is the answer.
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How we count
This page rests on 6 EPA ratings of the Volvo C30 — 2 engines across 2008–2013. 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 $2,742. Full method.
Frequently asked questions
What mpg does the Volvo C30 get?
23.7 mpg combined on average — 20.5 in the city and 29.3 on the highway, per EPA ratings across 2008–2013.
How much does a Volvo C30 cost in fuel per year?
About $1,620 at 12,000 miles and $3.20 a gallon — roughly $8,100 over five years, or 0.135 dollars a mile.
Which C30 engine is the most economical?
The 2.5L 5-cyl at 23.8 mpg, against 23 for the 2.4L 5-cyl — a difference of about $57 a year.
Is the C30 good on fuel compared with similar cars?
Against other 5-cyl cars it sits above the average of 21.8 mpg, computed across 217 ratings.
Are these real-world C30 figures?
No — they are EPA laboratory ratings, the same ones printed on the window sticker, and EPA's own annual fuel estimate for the Volvo C30 is $2,742 against the $1,620 we compute at 12,000 miles. Expect a little worse in practice: the spread between the 24 and 23 mpg versions of this car is smaller than the spread between two drivers of the same one.
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