Infiniti · 1997–2003 · Gas

Infiniti QX4 MPG by year

The EPA has rated 7 model years of the Infiniti QX4, from 1997 to 2003. The most fuel-efficient year is the 2003, at 16 MPG combined in its best configuration. The best 2003 model is 7% more efficient than the best 1997 model (16 vs. 15 MPG). The 2003 model is 6% less efficient than the median SUV that year (16 vs. 17 MPG).

Most efficient year200316 MPG combined
Latest (2003)16 MPG$2,906/yr to fuel
First rated (1997)15 MPG$3,100/yr at today's prices
Model years rated710 configurations

Combined MPG by model year

  • QX4, most efficient version
  • Range across configurations
  • Class median

Shaded band: range across that year's configurations. Class median: same-year models in the same class, rated in MPG. Click a point to open that model year; the table below lists every value.

Every QX4 model year

YearTypeBest combinedCity / HwyClass medianRangeConfigsFuel / yr
2003 Gas 16 MPG
lowest 15		 14 / 19 17 — 2 $2,906
2002 Gas 15 MPG 14 / 18 16.5 — 2 $3,100
2001 Gas 15 MPG 14 / 18 17 — 2 $3,100
2000 Gas 15 MPG 13 / 17 16 — 1 $3,100
1999 Gas 15 MPG 13 / 17 16 — 1 $3,100
1998 Gas 15 MPG 13 / 17 17 — 1 $3,100
1997 Gas 15 MPG 14 / 17 18 — 1 $3,100

Fuel cost uses today's default prices for every year so model years compare like for like. Sort any column.

Compare QX4 model years

See how much a newer QX4 would save over an older one.

Models similar to the Infiniti QX4

Frequently asked questions

Which Infiniti QX4 year has the best fuel economy?

The 2003 Infiniti QX4, rated up to 16 MPG combined. At 15,000 miles a year with $3.10/gal regular gas, that works out to about $2,906 a year.

Which Infiniti QX4 year has the worst fuel economy?

The 1997 model, whose most efficient version is rated 15 MPG combined (about $3,100 a year to fuel).

What is the fuel economy of the latest Infiniti QX4?

The 2003 Infiniti QX4 is rated up to 16 MPG combined.

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