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RunCost
Logbook · Compact Cars · 1995–2005

Pontiac Sunfire

What it costs to keep fuelled

$1,882a year, fuel only

The 2005 Pontiac Sunfire is EPA-rated at 25.5 MPG combined (22 city / 31.5 highway). Over 15,000 miles a year that is about 588 gallons, $1882 a year in fuel, or $0.125 per mile at $3.20/gal.

Across its full 1995–2005 run it averages 24.1 MPG, improving by 2.2 MPG over 11 model years.

LOGBOOK ENTRY · 2005 PONTIAC SUNFIRE SHEET PONTIAC-SUNFIRE · 11 YEARS ON FILE
25.5 MPG COMBINED 0 60

The band is how far one gallon carries it: 25.5 of the 60 MPG this scale runs to. The square tick is the compact cars average, 26.6.

Fuel, per year
$1,882 at 15,000 mi
Per mile
$0.125
Per kilometre
$0.078
Gallons burned/yr
588

1 mile = 1.609344 km · fuel at $3.20/gal, fixed JUL 2026

Test figure — not a road result

SOURCE·US EPA fuel-economy test data·FUEL ASSUMED AT $3.20/GAL FROM JUL 2026·REVIEWED JUL 2026

Combined25.5MPG · 2005
Cost per mile$0.125at $3.20/gal
Fuel per year$188215,000 miles
Class rank85of 227

How this is worked out

  1. Start from the EPA combined figure for the model year — a laboratory test cycle run to a fixed procedure, not a road result. Where a year sold several engines or drivetrains, the trims are averaged and the trim count is printed beside the row so you can see how much averaging is behind it.
  2. Fix a pump price. This site keeps one reference price, $3.20 a US gallon, fixed JUL 2026 and printed next to every dollar figure it produces. It is an assumption with a date on it, not a quote — put your own price in.
  3. Fix an annual distance. Every annual figure on this site uses 15,000 miles a year, roughly the US average. A cost per year with no stated distance is not a number, it is a mood.
  4. Divide distance by economy for gallons, multiply by price for the year's fuel, divide price by economy for one mile. The per-kilometre line is that last figure divided by 1.609344 — the same money, in the unit most of the world drives in.
  5. Stop there. No depreciation, no tyres, no insurance, no servicing. This is the fuel line of the ledger and it is labelled as one; depreciation usually dwarfs everything on it.
gallons/yr = miles/yr ÷ MPG
fuel  $/yr = gallons/yr × $/gal
cost  $/mi = $/gal ÷ MPG
cost  $/km = cost $/mi ÷ 1.609344

The full method, the licence note, and what a test figure cannot tell you →

Re-run the ledger at another pump price

Every line above rests on one pump price. Here is the same entry re-costed at six others, because the price is the part that changes while the test sheet stays put.

Fuel pricePer mile10,000 mi/yr15,000 mi/yr20,000 mi/yr
$2.50/gal $0.098 $980 $1471 $1961
$3.00/gal $0.118 $1176 $1765 $2353
$3.20/gal $0.125 $1255 $1882 $2510
$3.50/gal $0.137 $1373 $2059 $2745
$4.00/gal $0.157 $1569 $2353 $3137
$4.50/gal $0.176 $1765 $2647 $3529
$5.00/gal $0.196 $1961 $2941 $3922

SOURCE·US EPA fuel-economy test data·FUEL ASSUMED AT $3.20/GAL FROM JUL 2026·REVIEWED JUL 2026

The whole service history, sheet by sheet

11 model years on file. Read down the combined column: a nameplate that got heavier shows it here long before any brochure admits it.

Every model year of the Pontiac Sunfire the EPA has a test sheet for, averaged across trims.EPA DATA · JUL 2026
YearCombinedCityHighwayEPA fuel cost/yrCO₂ g/miTrims
2005 25.5 MPG2231.5 $24503492
2004 26 MPG2232 $24003422
2003 25 MPG21.530 $25003552
2002 23.5 MPG20.329.2 $26583796
2001 22.8 MPG19.628.2 $27303915
2000 23.2 MPG2028.8 $26903835
1999 23.4 MPG2028.6 $26703815
1998 23.6 MPG2029.2 $26403775
1997 24.2 MPG20.730.5 $25833686
1996 24.2 MPG20.830.4 $25803685
1995 23.3 MPG19.730.3 $26833823

Where a model year offered several engines or drivetrains, the figure is the average across all EPA-tested trims that year — the trim count is shown so you can see how much averaging is involved.

SOURCE·US EPA fuel-economy test data·FUEL ASSUMED AT $3.20/GAL FROM JUL 2026·REVIEWED JUL 2026

Marked against the rest of the compact cars bay

Among the 227 compact cars models tracked here, the Pontiac Sunfire ranks 85 on current figures, against a class average of 26.6 MPG — the square tick on the gauge above.

Closest more-efficient alternatives in the same class: Mazda 3 (25.8), Oldsmobile Firenza (25.8), BMW 328i xDrive (26), Ford Escort (26), BMW 328i (26.5).

Tailpipe CO₂ is rated at 349 grams per mile, which works out to roughly 5.2 tonnes a year at 15,000 miles.

Questions asked across the counter

What MPG does the Pontiac Sunfire get?

The 2005 Pontiac Sunfire is rated at 25.5 MPG combined by the EPA — 22 city and 31.5 highway. Across all 11 model years in the database it averages 24.1 MPG, ranging from 21 to 27 depending on year and trim.

How much does a Pontiac Sunfire cost in fuel per year?

At 25.5 MPG and 15,000 miles a year, it burns about 588 gallons — roughly $1882 a year with fuel at $3.20 a gallon, or $0.125 per mile. The EPA's own published annual figure for the 2005 model is $2450.

Has the Pontiac Sunfire become more efficient over time?

Yes. It has gone from 23.3 MPG in 1995 to 25.5 in 2005 — an improvement of 2.2 MPG, or 9% across 11 model years.

Is the Pontiac Sunfire efficient for its class?

It ranks 85 of 227 in the Compact Cars class on current figures, against a class average of 26.6 MPG. That is 1.1 worse than typical for the class.

SOURCE·US EPA fuel-economy test data·FUEL ASSUMED AT $3.20/GAL FROM JUL 2026·REVIEWED JUL 2026

Cost per mile, per kilometre and per year are computed at a reference price of $3.20 a gallon over 15,000 miles, fixed JUL 2026 — set your own pump price. Estimates based on official test figures and average fuel prices. Real-world consumption varies with driving style, load, terrain and maintenance.

See all 10 sites in this family, with what each one answers

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Amit Sharma

Auckland real-estate agent and marketer. Builds free, sourced data tools.