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Logbook · Small Sport Utility Vehicle 2WD · 2021–2026

Ford Mustang Mach-E RWD Extended

What it costs to keep fuelled

$436a year, fuel only

The 2026 Ford Mustang Mach-E RWD Extended is EPA-rated at 110 MPGe combined (115 city / 104 highway). Over 15,000 miles a year that is about 136 gallons, $436 a year in fuel, or $0.029 per mile at $3.20/gal.

Across its full 2021–2026 run it averages 103.2 MPGe, improving by 13 MPGe over 6 model years.

LOGBOOK ENTRY · 2026 FORD MUSTANG MACH-E RWD EXTENDED SHEET FORD-MUSTANG-MACH-E-RWD-EXTENDED · 6 YEARS ON FILE
110 MPGE COMBINED 0 120

The band is how far one gallon-equivalent of energy carries it: 110 of the 120 MPGe this scale runs to. The square tick is the small sport utility vehicle 2wd average, 33.6.

Fuel, per year
$436 at 15,000 mi
Per mile
$0.029
Per kilometre
$0.018
Gallon-equivalents/yr
136

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

MPGe — not a fuel bill

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

Combined110MPGe · 2026
Cost per mile$0.029at $3.20/gal
Fuel per year$43615,000 miles
Class rank4of 74

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 $0.023 $227 $341 $455
$3.00/gal $0.027 $273 $409 $545
$3.20/gal $0.029 $291 $436 $582
$3.50/gal $0.032 $318 $477 $636
$4.00/gal $0.036 $364 $545 $727
$4.50/gal $0.041 $409 $614 $818
$5.00/gal $0.045 $455 $682 $909

This is an electric vehicle, so the EPA rates it in MPGe — the distance it travels on the energy equivalent of a gallon of petrol. The dollar figures above are a petrol-equivalent illustration only; charging at home is billed per kWh and is normally far cheaper. Treat the MPGe as an efficiency comparison, not a fuel bill.

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

6 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 Ford Mustang Mach-E RWD Extended the EPA has a test sheet for, averaged across trims.EPA DATA · JUL 2026
YearCombinedCityHighwayEPA fuel cost/yrCO₂ g/miTrims
2026 110 MPGe115104 $7001
2025 110 MPGe115104 $7001
2024 106 MPGe111100 $7001
2023 99 MPGe10592 $7501
2022 97 MPGe10490 $8001
2021 97 MPGe10490 $8001

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 small sport utility vehicle 2wd bay

Among the 74 small sport utility vehicle 2wd models tracked here, the Ford Mustang Mach-E RWD Extended ranks 4 on current figures, against a class average of 33.6 MPGe — the square tick on the gauge above.

Closest more-efficient alternatives in the same class: Volkswagen ID.4 Pro (113), Volkswagen ID.4 Pro S (113), Hyundai Kona Electric (120).

Questions asked across the counter

What MPG does the Ford Mustang Mach-E RWD Extended get?

The 2026 Ford Mustang Mach-E RWD Extended is rated at 110 MPGe combined by the EPA — 115 city and 104 highway. Across all 6 model years in the database it averages 103.2 MPGe, ranging from 97 to 110 depending on year and trim.

How much does a Ford Mustang Mach-E RWD Extended cost in fuel per year?

At 110 MPGe and 15,000 miles a year, it burns about 136 gallons — roughly $436 a year with fuel at $3.20 a gallon, or $0.029 per mile. The EPA's own published annual figure for the 2026 model is $700.

Has the Ford Mustang Mach-E RWD Extended become more efficient over time?

Yes. It has gone from 97 MPGe in 2021 to 110 in 2026 — an improvement of 13 MPGe, or 13% across 6 model years.

Is the Ford Mustang Mach-E RWD Extended efficient for its class?

It ranks 4 of 74 in the Small Sport Utility Vehicle 2WD class on current figures, against a class average of 33.6 MPGe. That is 76.4 better 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.