SCION

Scion Gas Mileage by Model

Scion gas mileage averages 27.9 mpg across 8 models — roughly $1,376 a year in fuel. Below, every model from the most frugal to the thirstiest, with what each costs to feed.

EPA fueleconomy.gov · 8 models · 2004–2016 · Updated Sep 19, 2026
Quick answer

Scion averages 27.9 mpg combined across 8 petrol and diesel models (2004–2016). The best on record does 37 mpg, the thirstiest 23 — a yearly fuel gap of about $632. Its 1 electric model sits apart at 121 MPGe — 27.9 kWh per 100 miles, about $569 a year to charge, which is $807 less than the average Scion costs to fuel.

What that actually costs

What a Scion costs to feed, at 12,000 miles a year and $3.20 a gallon.

FIG.01·Scion fuel cost
MeasureValue
Average combined27.9 mpg
Fuel per year$1,376
Most frugal on record37 mpg — $1,038 a year
Thirstiest on record23 mpg — $1,670 a year
Its electric models121 MPGe — $569 a year to charge
ROWS 5·SOURCE ForCar, computed from EPA ratings

Scion models by gas mileage

From the most frugal down. The yearly figure is what the fuel actually costs at 12,000 miles.

FIG.02·Scion models by gas mileage
ModelAverage mpgBest / Worst engineFuel per year
Scion iQ36.837 / 36$1,043
Scion iA36.036 / 36$1,067
Scion iM31.031 / 31$1,239
Scion xA30.030 / 30$1,280
Scion xD29.029 / 29$1,324
Scion FR-S28.028 / 28$1,371
Scion xB25.329 / 24$1,518
Scion tC24.626 / 23$1,561
ROWS 8·SOURCE EPA fueleconomy.gov + ForCar

The electric Scions, measured differently

Scion has 1 model that never visit a filling station, averaging 121 MPGe. That figure looks four times better than the 27.9 mpg the petrol Scions manage, but the two are not the same unit — so we keep them apart and price the electric ones in kilowatt-hours.

FIG.03·Scion electric models by MPGe
ModelMPGekWh / 100 miCharging per year
Scion iQ121.027.9$569
ROWS 1·SOURCE EPA fueleconomy.gov + ForCar
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How we count

Scion rests on 44 EPA ratings covering 8 models from 2004 to 2016, plus 1 electric one counted separately in MPGe. The laboratory numbers are EPA's and go in unchanged; the money is ours, at 12,000 miles a year and $3.20 a gallon. Full method.

Frequently asked questions

What is the average Scion gas mileage?

27.9 mpg combined across 8 models and 44 EPA ratings, from 2004 to 2016 — 12 model years in one figure, which is why it sits below what a new Scion does today.

Which Scion model is the most economical?

The Scion iQ at 36.8 mpg, about $1,043 a year in fuel, against the tC at 24.6 mpg and $1,561 — a gap of $518 a year between the two ends of the same badge.

How much does a Scion cost to run?

About $1,376 a year in fuel, at 12,000 miles and $3.20 a gallon. Over five years that is $6,880, before a single service.

Does Scion make anything electric?

Yes — 1 model, rated 121 MPGe rather than in mpg, which works out to 27.9 kWh per 100 miles and roughly $569 a year at the socket. That is $807 less than the average petrol Scion, though the two ratings are not in the same unit.

Gas mileage ratings from EPA fueleconomy.gov, unadjusted. Running cost computed by ForCar at 12,000 miles a year and $3.20 a gallon. Last updated Sep 2026. — ForCar Reviewed by , founder of ForCar.
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