Advanced Automotive Technology: Visions of a Super-Efficient Family Car

TABLE 3-9: Fuel Economy Comparison at

Equal Performance: Gasoline vs. Diesel

(miles per imperial gallon)

Type Manufacturer Model Engine Trans E.C.E. city 90 km/hr 120 km/hr

IDI/NA Fiat Tipo 1.4 L gas M-5 31.7 52.3 38.7

1.6 L diesel M-5 42.2 57.6 42.2

Benefit % 33.1 10.1 9.0

Ford Escort 1.3 L gas M-5 34.9 52.3 38.8

1.8 L diesel M-5 43.5 64.2 47.1

Benefit % 24.6 22.7 18.3

Peugeot 306 1.6 L gas M-5 31.4 52.3 39.8

1.9 L diesel M-5 40.4 61.4 44.8

Benefit % 28.7 17.4 12.6

Nissan Primera 1.6 L/4V gas M-5 30.1 54.3 42.2

2.0 L diesel M-5 39.2 62.8 44.1

Benefit % 30.2 15.6 9.7

IDI/Turbo Fiat Tempra 1.6 L gas M-5 27.4 48.7 28.7

1.9 L diesel M-5 46.3 62.8 47.9

Benefit % 69.0 29.0 23.8

Ford Escort 1.6 L gas M-5 31.0 49.6 40.9

1.8 L diesel M-5 38.2 58.9 41.5

Benefit % 23.2 18.8 1.5

Peugot 306 1.8 L gas M-5 27.2 47.9 37.2

1.9 L diesel M-5 37.7 64.2 45.6

Benefit % 38.6 34.0 22.6

IDI/Turbo BMW 320i 2.0 L gas M-5 24.8 41.5 34.0

2.4 L diesel M-5 32.1 57.6 43.5

Benefit % 29.4 38.8 27.9

2.0 L gas A-5 23.3 46.3 36.7

2.4 L diesel A-5 30.1 57.6 44.1

Benefit % 29.2 24.4 20.1

Volvo 940 2.0 L gas M-5 23.3 39.2 29.4

2.4 L diesel M-5 28.8 49.6 35.8

Benefit % 23.6 26,.5 21.8

2.0 L gas A-4 21.6 38.2 29.7

2.4 L diesel A-4 28.8 47.9 34.9

Benefit % 333 25.4 17.5

DI/Turbo Golf 1.8 L gas M-5 30.4 52.3 39.2

1.9 L diesel M-5 50.4 74.3 52.3

Benefit % 65.8 42.1 33*4

Passat 1.8 L gas A-4 25.4 42.8 34.4

1.9 L diesel A-4 34.5 52.3 39.2

Benefit % 34.5 523 592

Audia 2.6 L gas A-4 20.9 37.7 30.7

2.5 L diesel A-4 34.4 61.4 43.5

Benefit % 64.6 62.9 41.7

aGasoline engine has higher performance.

KEY: IDI = indirect injection.

SOURCE: U.K. Fuel Economy Guide, 1994.