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2004 Kia Rio Gas Tank Size & Fuel Capacity

Sedan 4 trims listed 1 fuel-system recall ← 2003 2005 →

Fuel tank capacity

11.9gal · 45 L

The 2004 Kia Rio has a fuel tank capacity of 11.9 gallons (45 liters) on every trim.

A full tank is good for roughly 345–357 highway miles or 250–274 miles around town, going by the EPA ratings.

11.9 gal · Smaller than 99% of 2004 models we list.

Highway range
345–357 mi
City range
250–274 mi
Fuel
Regular unleaded
EPA combined
24–26 MPG
EPA size class
Compact Cars

2004 Kia Rio fuel tank capacity by trim

What changes the tank sizeTap an option to filter the table

Engine
no difference

All 4 trims

MPG and range are city / highway.

TrimEngineDrive Tank MPG city / hwy Range city / hwy
4dr Sedan 1.6L 4cyl 4A · FWD MPG 22 / 30Range 262 / 357 mi 1.6L 4cyl 4A FWD 11.9 gal45 L 22 / 30 262 / 357 mi
4dr Sedan 1.6L 4cyl 5M · FWD MPG 23 / 30Range 274 / 357 mi 1.6L 4cyl 5M FWD 11.9 gal45 L 23 / 30 274 / 357 mi
Cinco 4dr Wagon 1.6L 4cyl 4A · FWD MPG 21 / 29Range 250 / 345 mi 1.6L 4cyl 4A FWD 11.9 gal45 L 21 / 29 250 / 345 mi
Cinco 4dr Wagon 1.6L 4cyl 5M · FWD MPG 22 / 29Range 262 / 345 mi 1.6L 4cyl 5M FWD 11.9 gal45 L 22 / 29 262 / 345 mi

Tank figures are the manufacturer's rated capacity, sorted smallest tank first. Range is tank size times EPA city or highway MPG.

How far a 2004 Kia Rio goes on a tank

Gallons left and the distance they cover at each mark on the fuel gauge, at EPA city and highway mileage. At the combined rating of 25 MPG, a full 11.9-gallon tank covers about 298 miles.

GaugeGallonsHighway milesCity miles
Full11.9357262
3/48.9268196
1/26.0179131
1/43.08965
1/81.54533

Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 600 gallons, roughly 50 full tanks.

Fuel gauges aren't perfectly linear and the low-fuel light comes on with a few gallons still in the tank, so plan your stop before the last eighth.

EPA combined
24–26 MPG
Tailpipe CO2
342–370 g/mi
Source
EPA ratings

What it costs to fill up a 2004 Kia Rio

$50.81 to fill the 11.9-gallon tank from empty with regular, at this week's US average of $4.27 a gallon.

TankFuelUS avg / galFrom emptyFrom 1/4 tank
11.9 galRegular$4.27$50.81$38.11

By region, 11.9-gallon tank

RegionRegular / galFill from empty
East Coast$4.02$47.84
Midwest$4.27$50.81
Gulf CoastLowest$3.70$44.03
Rocky Mountain$4.46$53.07
West Coast$5.42$64.50
CaliforniaHighest$5.89$70.09

Prices: U.S. Energy Information Administration retail averages for the week of October 26, 2026. This week's prices by state and city.

Your own price

  • 11.9-gallon tank$50.81
  • A year of driving (15,000 mi)$2,562

Starts at the US average for regular; type in what your station charges. For other tank sizes, use the fill-up calculator.

Rio tank size in other years

The 2004 Rio uses the same 11.9 gal tank as every Rio since 2001.

Model yearTankLongest highway range
2009 Rio 11.9 gal 417 mi
2008 Rio 11.9 gal 417 mi
2007 Rio 11.9 gal 417 mi
2006 Rio 11.9 gal 417 mi
2005 Rio 11.9 gal 345 mi
2004 Rio 11.9 gal 357 mi
2003 Rio 11.9 gal 357 mi
2002 Rio 11.9 gal 345 mi
2001 Rio 11.9 gal 345 mi
Kia Rio fuel tank by model year
20012002200320042005200620072008200920102011201220132014201520162017201820192020202120222023
← 2003 Kia Rio Every Rio year 2005 Kia Rio →

2004 Kia Rio vs similar 2004 sedans

The Rio has the smallest tank of the three 2004 sedans compared here: 11.9 gallons, against 13.2 for the Suzuki Aerio.

2004 modelTankLongest highway range
Suzuki Aerio 13.2 gal 370 mi
Dodge Neon 12.5 gal 400 mi
Kia Rio 11.9 gal 357 mi

Other 2004 sedans of a similar size, one model per brand.

2004 Kia Rio fuel system recalls

NHTSA lists 1 fuel-system recall for the 2004 Kia Rio, out of 2 recalls in total. A recall applies only to the vehicles named in it, so check your VIN.

DeliveryApr 9, 2004 · NHTSA 04V179000 · Kia Motors America, Inc. · 187,790 vehicles

On certain passenger vehicles, the fuel intake nipple of the fuel distributor is subject to fracture or cracking during removal of the quick connect coupling securing the main fuel tube assembly to the fuel intake nipple, or when force is accidentally applied to the intake nipple during the vehicle assembly process or during engine compartment repairs.

Risk and remedy

Risk: Fuel leakage in the presence of an ignition source may result in a fire.

Remedy: Dealers will replace the fuel distributor and main fuel tube assemblies. The recall began june 18, 2004. Owners should contact kia at 1-800-333-4542.

All Kia fuel recalls Look up your tank by VIN

Frequently asked questions

What is the fuel tank capacity of the 2004 Kia Rio?

The 2004 Kia Rio holds 11.9 gallons (45 liters) on every trim we list.

How many gallons and liters does the 2004 Kia Rio gas tank hold?

The 2004 Kia Rio tank holds 45 liters, or 11.9 gallons in US gallons.

How far can a 2004 Kia Rio go on a full tank?

About 345–357 miles on the highway and 250–274 miles in town, going from full to empty at its EPA ratings. Expect less in practice, since nobody runs the tank dry.

How many miles can a 2004 Kia Rio go on a quarter tank?

About 89 highway miles or 65 in town from the 11.9-gallon tank, which has roughly 3.0 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.

What gas does the 2004 Kia Rio take?

Regular unleaded. The label inside the fuel door confirms it for your car.

How much does it cost to fill up a 2004 Kia Rio?

At the US average of $4.27 a gallon for regular (EIA, week of October 26, 2026), filling the 11.9-gallon tank from empty costs $50.81. It ranges from $44.03 in the Gulf Coast to $70.09 in California.

How much does a full tank of gas weigh in a 2004 Kia Rio?

About 74 pounds for the 11.9-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.

Does the 2004 Kia Rio have a bigger gas tank than the Dodge Neon?

No. The 2004 Dodge Neon holds up to 12.5 gallons; the 2004 Kia Rio holds up to 11.9.

Has the 2004 Kia Rio had a fuel pump or fuel system recall?

Yes. NHTSA lists 1 fuel-system recall for the 2004 Kia Rio: 04V179000 (delivery). Check your VIN at nhtsa.gov/recalls to see if your car is affected.

Sources

  • Tank sizes: manufacturer-rated capacities from US-market specifications, checked against independent references. Updated October 2026.
  • MPG and range: EPA ratings (fueleconomy.gov). Range is tank size times EPA MPG.
  • Fuel prices: U.S. Energy Information Administration, week of October 26, 2026 (this week's prices).
  • Recalls: NHTSA recall database (Kia fuel system recalls).

Does your owner's manual say something different? Let us know and we'll fix it. More on how we check the numbers.

Other 2004 Kia models

Amanti18.5 gallons Optima17.2 gallons Sedona19.8 gallons Sorento21.1 gallons Spectra13.2–14.5 gallons