Against 435 other V6 cars rated 2002–2004, the I35 beats their 18.8 mpg average by 1.2 mpg, about $123 a year.
Every Infiniti I35 engine, compared
The Infiniti I35 was rated in a single specification, so its gas mileage does not vary by version — only by model year. Yearly cost assumes 12,000 miles at $3.20 a gallon.
| Engine | Combined | City / Highway | Years | Fuel per year |
|---|---|---|---|---|
| 3.5L 6-cyl | 17 / 24 | 2002–2004 | $1,920 |
What that actually costs
Against its rivals in the same model years, the Acura TL gets 21 mpg, the Nissan Maxima 21 mpg and the Buick LaCrosse 21 mpg, next to 20 mpg for the 2004 I35. The I35 costs the most of them to run: $91 a year more than the Acura TL.
| Measure | Value |
|---|---|
| Cost per mile (2004) | $0.160 |
| Fuel per year | $1,920 |
| Fuel over five years | $9,600 |
| Against other V6 cars, 2002–2004 | −$123 a year |
| EPA's own estimate | $3,100 a year |
City or highway — who is this car for
The 2004 Infiniti I35 gives up 7 mpg in town: 24 on the highway against 17 in the city, $659 a year if every mile were city driving.
| Measure | Value | Reading |
|---|---|---|
| City (2004) | 17 mpg | $2,259 a year if you only drive in town |
| Highway | 24 mpg | $1,600 a year if you mostly commute |
| Gap | +7 mpg (41%) | Wide — this car dislikes traffic |
How the I35 changed over the years
Combined figure across the 3 model years the I35 was rated in, all of them at 20 mpg.
| Model year | Combined | City / Highway | Engines offered | Fuel per year |
|---|---|---|---|---|
| 2004 | 17 / 24 | 1 | $1,920 | |
| 2003 | 17 / 24 | 1 | $1,920 | |
| 2002 | 17 / 24 | 1 | $1,920 |
MPG is a number. Dollars per year is the answer.
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How we count
This page rests on 3 EPA ratings of the Infiniti I35 — 1 engine across 2002–2004. The mileage is EPA's laboratory figure, unchanged; the yearly bill is ours, at 12,000 miles and $3.20 a gallon, against EPA's own estimate of $3,100. Full method.
Frequently asked questions
What mpg does the 2004 Infiniti I35 get?
20 mpg combined, 17 city and 24 highway, per EPA. Across every year since 2002 the I35 has averaged 20 mpg.
Is the 2004 I35 more efficient than the 2003?
About the same: 20 against 20 mpg combined.
Does the I35 get better gas mileage than the Acura TL?
No: 20 mpg for the 2004 I35 against 21 for the 2005 Acura TL, about $91 a year more to run.
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