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Fuel Economy of 2004 Bifuel (Natural Gas) Vehicles

		EPA MPG
MODEL		City	Comb	Hwy	Fuel Cost
2004 Chevrolet Cavalier Dual-fuel 4 cyl, 2.2 L, Automatic 4-spd, Regular Gasoline or natural gas
	Gas	21 City	24 Combined	29 Highway	$2177 per year
	CNG	20 City	23 Combined	29 Highway	$1364 per year
2004 Chevrolet Express Cargo (Bi-fuel) 8 cyl, 6.0 L, Automatic 4-spd, Regular Gasoline or natural gas
	Gas	11 City	12 Combined	15 Highway	$4348 per year
	CNG	11 City	12 Combined	15 Highway	$2611 per year
2004 Chevrolet Express Passenger (Bi-fuel) 8 cyl, 6.0 L, Automatic 4-spd, Regular Gasoline or natural gas
	Gas	11 City	12 Combined	15 Highway	$4348 per year
	CNG	11 City	12 Combined	15 Highway	$2611 per year
2004 Ford F150 Dual-fuel 2WD (CNG) 8 cyl, 5.4 L, Automatic 4-spd, Regular Gasoline or natural gas
	Gas	11 City	12 Combined	14 Highway	$4348 per year
	CNG	10 City	12 Combined	14 Highway	$2611 per year
2004 Ford F150 Dual-fuel 4WD (CNG) 8 cyl, 5.4 L, Automatic 4-spd, Regular Gasoline or natural gas
	Gas	11 City	12 Combined	14 Highway	$4348 per year
	CNG	10 City	11 Combined	13 Highway	$2850 per year
2004 GMC Savana (cargo) (Bi-fuel) 8 cyl, 6.0 L, Automatic 4-spd, Regular Gasoline or natural gas
	Gas	11 City	12 Combined	15 Highway	$4348 per year
	CNG	11 City	12 Combined	15 Highway	$2611 per year
2004 GMC Savana Passenger (Bi-fuel) 8 cyl, 6.0 L, Automatic 4-spd, Regular Gasoline or natural gas
	Gas	11 City	12 Combined	15 Highway	$4348 per year
	CNG	11 City	12 Combined	15 Highway	$2611 per year

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

Assumed Fuel Prices:

• Regular: 3.48
• Midgrade: 3.61
• Premium: 3.76
• Diesel: 3.86
• CNG: 2.09
• Electricity: 0.12 per kilowatt hour
• E85: 3.19
• LPG: 3.06