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1999 Infiniti G20 (base) (P11)
Shown: 1999 Infiniti G20 (base) (P11). Photo: Mr.choppers, CC BY-SA 3.0, via Wikimedia Commons
  • Gas
  • Small cars
  • MY2000–2002

Infiniti G20 MPG & Fuel Cost by Year

3 model years · 2000–2002

24 MPG
Combined
21 MPG
City
29 MPG
Highway
Annual cost · MY2002 G20 2.0L 4-cyl FWD
$2,720

15,000 mi/yr · regular gasoline $4.36/gal (U.S. average, Sep 2026)

All Infiniti models

Infiniti G20 fuel economy at a glance

EPA has rated the Infiniti G20 for 3 model years, 2000 to 2002. Across those years its combined rating runs 23–24 MPG. The latest model year, 2002, has 2 configurations rated 23–24 MPG combined and costing $2,720–$2,840 a year to fuel at regular gasoline $4.36/gal (U.S. average, Sep 2026). The most efficient configuration on record since 2000 is the 2002 G20 2.0L 4-cyl FWD, at 24 MPG. EPA ratings go back to 1984: the earliest rating on this page is 24 MPG in 1991.

Infiniti G20 MPG by year

2224 20002002 Gas 2224 20002002 Gas
Combined MPG: the line is the most efficient configuration, the shaded band reaches down to the least efficient. Dotted lines mark new generations.
Infiniti G20: combined fuel economy and annual fuel cost for each model year, grouped by generation
Year Gas (MPG) $/yr
2000-2002 (P11) Generation page
2002 23–24 $2,720–$2,840
2001 23–24 $2,720–$2,840
2000 23–24 $2,720–$2,840

Costs use the current EIA price set and 15,000 miles a year for every year, so years are comparable. Green marks the best year for each powertrain.

Infiniti G20 generations

1 generations between 2000 and 2002. Open one for the table of every model year and configuration.

2002 powertrain options

Gas · 2.0L
Combined
23–24 MPG
Per year
$2,720–$2,840
See gas configurations

Infiniti G20 MPG history, 1991–1999

Infiniti G20: combined MPG range by model year, 1991–1999
YearGas (MPG)
1999 22–23
1996 22–24
1995 22–24
1994 22–24
1993 22–24
1992 22–24
1991 22–24

EPA re-estimated the ratings of pre-2008 vehicles under its 2008 method; these are the re-estimated values.

EPA ratings: fueleconomy.gov file of Sep 29, 2026 · regular gasoline $4.36/gal (U.S. average, Sep 2026) · 15,000 mi/yr, 55% city / 45% highway · How we calculate

Frequently asked questions

What is the Infiniti G20's gas mileage by year?

EPA combined ratings for the Infiniti G20 run 23–24 MPG across model years 2000 to 2002. The latest year, 2002, is rated 23–24 MPG.

Which Infiniti G20 model year has the best gas mileage?

The 2002 Infiniti G20 G20 2.0L 4-cyl FWD has the highest combined rating since 2000, at 24 MPG.

How much does a Infiniti G20 cost to fuel per year?

For MY2002, EPA-rated configurations cost $2,720–$2,840 a year to fuel, driving 15,000 miles at regular gasoline $4.36/gal (U.S. average, Sep 2026). The most efficient one costs $2,720.

Has the Infiniti G20's fuel economy improved over time?

Not much. The most efficient configuration is rated 24 MPG in both 2000 and 2002. Going back further, the best rating in 1984 was 24 MPG.

Which Infiniti G20 model years have the same ratings?

EPA lists identical ratings as the previous year for 2001, 2002. The generation pages mark those years "same EPA ratings" and point to the year that holds the full table.