
The following table compares the fuel economies of different models of Infiniti Q45 cars, across model years.
The annual fuel costs (shown in the right-hand columns) are calculated based on an estimated annual mileage of 15,000 miles,
of which 55% of the miles are city driving, and 45% of the miles are highway driving.
Annual Cost 1 assumes a fuel cost of $5.00 per gallon, while Annual Cost 2 assumes a fuel cost of $6.00 per gallon.
| Model Year | Transmission | Cyl. | Combined MPG | City MPG |
Highway MPG |
Annual Cost 1 |
Annual Cost 2 |
|---|---|---|---|---|---|---|---|
| 2006 Q45 | Automatic (S5) | 8 | 18 | 16 | 22 | $4,112 | $4,934 |
| 2005 Q45 | Automatic (S5) | 8 | 18 | 16 | 22 | $4,112 | $4,934 |
| 2004 Q45 | Automatic (S5) | 8 | 18 | 16 | 22 | $4,112 | $4,934 |
| 2003 Q45 | Automatic (S5) | 8 | 18 | 16 | 22 | $4,112 | $4,934 |
| 2002 Q45 | Automatic (S5) | 8 | 18 | 16 | 23 | $4,045 | $4,854 |
| 2001 Q45 | Automatic 4-speed | 8 | 18 | 16 | 21 | $4,185 | $5,022 |
| 2000 Q45 | Automatic 4-speed | 8 | 18 | 16 | 21 | $4,185 | $5,022 |
| 1999 Q45 | Automatic 4-speed | 8 | 18 | 16 | 22 | $4,112 | $4,934 |
| 1998 Q45 | Automatic 4-speed | 8 | 18 | 16 | 22 | $4,112 | $4,934 |
| 1997 Q45 | Automatic 4-speed | 8 | 18 | 16 | 22 | $4,112 | $4,934 |
| 1996 Q45 | Automatic 4-speed | 8 | 17 | 15 | 20 | $4,437 | $5,325 |
| 1995 Q45 | Automatic 4-speed | 8 | 17 | 15 | 20 | $4,437 | $5,325 |
| 1994 Q45 | Automatic 4-speed | 8 | 17 | 15 | 20 | $4,437 | $5,325 |
| 1993 Q45 | Automatic 4-speed | 8 | 17 | 15 | 20 | $4,437 | $5,325 |
| 1992 Q45 | Automatic 4-speed | 8 | 17 | 15 | 20 | $4,437 | $5,325 |
| 1991 Q45 | Automatic 4-speed | 8 | 17 | 15 | 20 | $4,437 | $5,325 |
| 1990 Q45 | Automatic 4-speed | 8 | 17 | 15 | 20 | $4,437 | $5,325 |
| Model Year | Transmission | Cyl. | Combined MPG | City MPG |
Highway MPG |
Annual Cost 1 |
Annual Cost 2 |
|---|---|---|---|---|---|---|---|
| 2006 Q45 Sport | Automatic (S5) | 8 | 18 | 15 | 22 | $4,284 | $5,140 |
| Model Year | Transmission | Cyl. | Combined MPG | City MPG |
Highway MPG |
Annual Cost 1 |
Annual Cost 2 |
|---|---|---|---|---|---|---|---|
| 1995 Q45 Full-Active Suspension | Automatic 4-speed | 8 | 16 | 14 | 19 | $4,722 | $5,667 |
| 1994 Q45 Full-Active Suspension | Automatic 4-speed | 8 | 16 | 14 | 19 | $4,722 | $5,667 |
| 1993 Q45 Full-Active Suspension | Automatic 4-speed | 8 | 15 | 14 | 18 | $4,821 | $5,785 |
| 1992 Q45 Full-Active Suspension | Automatic 4-speed | 8 | 15 | 13 | 17 | $5,158 | $6,190 |
| 1991 Q45 Full-Active Suspension | Automatic 4-speed | 8 | 15 | 13 | 17 | $5,158 | $6,190 |
Data source: Fuel Economy USA, Reference.