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Fuel Economy of 1991 Porsche Vehicles
EPA MPG  
MODEL City Comb Hwy Fuel Cost
1991 Porsche 911 Carrera 4/2 6 cyl, 3.6 L, Manual 5-spd, Premium Gasoline
1991 Porsche 911 Carrera 4/2 15

City

17

Combined

22

Highway

$3550

per year

1991 Porsche 911 Carrera 4/2 6 cyl, 3.6 L, Manual 5-spd, Premium Gasoline
1991 Porsche 911 Carrera 4/2 14

City

16

Combined

21

Highway

$3750

per year

1991 Porsche 911 Carrera 4/2 6 cyl, 3.6 L, Automatic (S4), Premium Gasoline
1991 Porsche 911 Carrera 4/2 14

City

16

Combined

21

Highway

$3750

per year

1991 Porsche 911 Turbo 6 cyl, 3.3 L, Manual 5-spd, Premium Gasoline
1991 Porsche 911 Turbo 12

City

14

Combined

20

Highway

$4300

per year

1991 Porsche 928 S4 8 cyl, 5.0 L, Automatic 4-spd, Premium Gasoline
1991 Porsche 928 S4 14

City

15

Combined

17

Highway

$4000

per year

1991 Porsche 928 S4 8 cyl, 5.0 L, Manual 5-spd, Premium Gasoline
1991 Porsche 928 S4 11

City

14

Combined

18

Highway

$4300

per year

1991 Porsche 928 S4 8 cyl, 4.9 L, Automatic 4-spd, Regular Gasoline
1991 Porsche 928 S4 14

City

15

Combined

18

Highway

$3750

per year

1991 Porsche 944 S2 4 cyl, 3.0 L, Manual 5-spd, Premium Gasoline
1991 Porsche 944 S2 15

City

18

Combined

24

Highway

$3350

per year

1991 Porsche Carrera 6 cyl, 3.2 L, Manual 5-spd, Regular Gasoline
1991 Porsche Carrera 14

City

16

Combined

21

Highway

$3500

per year

1991 Porsche Carrera 4 6 cyl, 3.6 L, Manual 5-spd, Premium Gasoline
1991 Porsche Carrera 4 12

City

14

Combined

19

Highway

$4300

per year

Annual Fuel Costs are based on 45% highway driving, 55% city driving, and 15000 annual miles.

Assumed Fuel Prices:

  • Regular: 3.75
  • Midgrade: 3.90
  • Premium: 4.02
  • Diesel: 4.00
  • CNG: 2.13
  • Electricity: 0.12 per kilowatt hour
  • E85: 3.14
  • LPG: 3.08