Infiniti
Q45
U.S. fuel economy and specifications from the EPA.
18Best combined MPG1997 model year
1990–2006Model years17 with EPA ratings
17Rated configurationsDrive, transmission and engine
4.1–4.5 LEngine sizeDisplacement
Best combined MPG by model year
The highest EPA rating among each year's configurations.
1990 17 MPG
1991 17 MPG
1992 17 MPG
1993 17 MPG
1994 17 MPG
1995 17 MPG
1996 17 MPG
1997 18 MPG
1998 18 MPG
1999 18 MPG
2000 18 MPG
2001 18 MPG
2002 18 MPG
2003 18 MPG
2004 18 MPG
2005 18 MPG
2006 18 MPG
1 configuration.
Rear-Wheel Drive · Automatic (S5)
Premium gasoline · Midsize Cars
- Combined MPG
- 18
- Engine displacement
- 4.5 L
- Cylinders
- 8
Rear-Wheel Drive · Automatic (S5)
Premium gasoline · Midsize Cars
- Combined MPG
- 18
- Engine displacement
- 4.5 L
- Cylinders
- 8
Rear-Wheel Drive · Automatic (S5)
Premium gasoline · Midsize Cars
- Combined MPG
- 18
- Engine displacement
- 4.5 L
- Cylinders
- 8
Rear-Wheel Drive · Automatic (S5)
Premium gasoline · Large Cars
- Combined MPG
- 18
- Engine displacement
- 4.5 L
- Cylinders
- 8
Rear-Wheel Drive · Automatic (S5)
Premium gasoline · Midsize Cars
- Combined MPG
- 18
- Engine displacement
- 4.5 L
- Cylinders
- 8
Rear-Wheel Drive · Automatic 4-spd
Premium gasoline · Midsize Cars
- Combined MPG
- 18
- Engine displacement
- 4.1 L
- Cylinders
- 8
Rear-Wheel Drive · Automatic 4-spd
Premium gasoline · Midsize Cars
- Combined MPG
- 18
- Engine displacement
- 4.1 L
- Cylinders
- 8
Rear-Wheel Drive · Automatic 4-spd
Premium gasoline · Midsize Cars
- Combined MPG
- 18
- Engine displacement
- 4.1 L
- Cylinders
- 8
Rear-Wheel Drive · Automatic 4-spd
Premium gasoline · Midsize Cars
- Combined MPG
- 18
- Engine displacement
- 4.1 L
- Cylinders
- 8
Rear-Wheel Drive · Automatic 4-spd
Premium gasoline · Midsize Cars
- Combined MPG
- 18
- Engine displacement
- 4.1 L
- Cylinders
- 8
Rear-Wheel Drive · Automatic 4-spd
Premium gasoline · Midsize Cars
- Combined MPG
- 17
- Engine displacement
- 4.5 L
- Cylinders
- 8
Rear-Wheel Drive · Automatic 4-spd
Premium gasoline · Midsize Cars
- Combined MPG
- 17
- Engine displacement
- 4.5 L
- Cylinders
- 8
Rear-Wheel Drive · Automatic 4-spd
Premium gasoline · Midsize Cars
- Combined MPG
- 17
- Engine displacement
- 4.5 L
- Cylinders
- 8
Rear-Wheel Drive · Automatic 4-spd
Premium gasoline · Midsize Cars
- Combined MPG
- 17
- Engine displacement
- 4.5 L
- Cylinders
- 8
Rear-Wheel Drive · Automatic 4-spd
Premium gasoline · Midsize Cars
- Combined MPG
- 17
- Engine displacement
- 4.5 L
- Cylinders
- 8
Rear-Wheel Drive · Automatic 4-spd
Premium gasoline · Midsize Cars
- Combined MPG
- 17
- Engine displacement
- 4.5 L
- Cylinders
- 8
Rear-Wheel Drive · Automatic 4-spd
Premium gasoline · Midsize Cars
- Combined MPG
- 17
- Engine displacement
- 4.5 L
- Cylinders
- 8