Part of the data ring
RunCost
Logbook · Compact Cars · 1984–1989

Peugeot 505 Sedan

What it costs to keep fuelled

$2,637a year, fuel only

The 1989 Peugeot 505 Sedan is EPA-rated at 18.2 MPG combined (16.2 city / 20.7 highway). Over 15,000 miles a year that is about 824 gallons, $2637 a year in fuel, or $0.176 per mile at $3.20/gal.

Across its full 1984–1989 run it averages 19.5 MPG, falling by 3.3 MPG over 5 model years.

LOGBOOK ENTRY · 1989 PEUGEOT 505 SEDAN SHEET PEUGEOT-505-SEDAN · 5 YEARS ON FILE
18.2 MPG COMBINED 0 60

The band is how far one gallon carries it: 18.2 of the 60 MPG this scale runs to. The square tick is the compact cars average, 26.6.

Fuel, per year
$2,637 at 15,000 mi
Per mile
$0.176
Per kilometre
$0.109
Gallons burned/yr
824

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

Combined18.2MPG · 1989
Cost per mile$0.176at $3.20/gal
Fuel per year$263715,000 miles
Class rank203of 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 $0.137 $1374 $2060 $2747
$3.00/gal $0.165 $1648 $2473 $3297
$3.20/gal $0.176 $1758 $2637 $3516
$3.50/gal $0.192 $1923 $2885 $3846
$4.00/gal $0.220 $2198 $3297 $4396
$4.50/gal $0.247 $2473 $3709 $4945
$5.00/gal $0.275 $2747 $4121 $5495

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

5 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 Peugeot 505 Sedan the EPA has a test sheet for, averaged across trims.EPA DATA · JUL 2026
YearCombinedCityHighwayEPA fuel cost/yrCO₂ g/miTrims
1989 18.2 MPG16.220.7 $39754896
1988 18.3 MPG16.220.7 $39504856
1987 19 MPG17.421.4 $35884788
1986 20.5 MPG19.223.3 $35834596
1984 21.5 MPG20.323.1 $340845812

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 Peugeot 505 Sedan ranks 203 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: Volkswagen Quantum (18.5), Acura Legend (18.8), Bentley Continental GT (19), BMW M3 Competition Sedan (19), BMW M3 Sedan (19).

Tailpipe CO₂ is rated at 489 grams per mile, which works out to roughly 7.3 tonnes a year at 15,000 miles.

Questions asked across the counter

What MPG does the Peugeot 505 Sedan get?

The 1989 Peugeot 505 Sedan is rated at 18.2 MPG combined by the EPA — 16.2 city and 20.7 highway. Across all 5 model years in the database it averages 19.5 MPG, ranging from 17 to 26 depending on year and trim.

How much does a Peugeot 505 Sedan cost in fuel per year?

At 18.2 MPG and 15,000 miles a year, it burns about 824 gallons — roughly $2637 a year with fuel at $3.20 a gallon, or $0.176 per mile. The EPA's own published annual figure for the 1989 model is $3975.

Has the Peugeot 505 Sedan become more efficient over time?

No — it has actually gone backwards, from 21.5 MPG in 1984 to 18.2 in 1989. That usually reflects the model growing heavier, more powerful, or moving upmarket rather than the engineering getting worse.

Is the Peugeot 505 Sedan efficient for its class?

It ranks 203 of 227 in the Compact Cars class on current figures, against a class average of 26.6 MPG. That is 8.4 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.

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Amit Sharma

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