Your Mileage May Vary
News: Test-driving the alternatives to gas-guzzlers
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Mileage And Cost Breakdown |
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mileage |
Cost of Fuel |
Infrastructure |
federal |
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Gasoline |
8 to 37 mpg |
$3.39 per gallon |
Existing gasoline stations |
$39 billion to Big Oil & Gas in '06 |
Diesel |
15 to 32 mpg |
$3.85 per gallon |
Existing diesel stations |
Ditto |
Hybrid |
20 to 48 mpg |
$3.39 per gallon |
Existing gasoline stations |
Tax credits up to $3,000 for hybrid buyers |
Electric |
30 to 100 miles per charge |
3 to 5˘ per mile |
Existing electric system. Now 435 charging stations. |
Tax credit for e-car buyers ended in '07. |
Ethanol |
9 to 29 mpg |
$2.67 per gallon; |
More than 1,300 gas stations sell E85. |
$1.10 to $1.30 per gallon; E85 carmakers get CAFE credits. |
Biodiesel |
15 to 32 mpg |
$3.08 per gallon; $2.82 per gge |
Now 651 biodiesel stations. 100% BD requires engine conversion. |
$1.70 to $2.10 per gallon |
Natural |
24 to 36 miles per gge |
$1.65 per gge |
1,500+ NG fueling stations. 300,000 miles of pipelines. |
$4,000 tax credit for NG car buyers |
Hydrogen |
14 to 67 miles per gge |
doe goal is $2 to $3 per gge by 2015. |
Building enough stations for 1% of Americans to drive hydrogen cars would cost $472 million. |
$1.2 billion Hydrogen Fuel Initiative |
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Emissions Comparison |
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CO2 emissions vs. gas |
fuel's oil input vs. gas |
Comments |
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Gasoline |
100% |
100% |
Where to begin? |
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Diesel |
79% |
81% |
By 2009, new "clean diesel" vehicles will meet gasoline pollution standards. |
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Hybrid |
75% |
74% |
Coming soon: plug-ins that lower CO2 emissions on routine commutes |
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Electric |
26% |
0% |
Most models go no more than 100 miles on a charge. Batteries still clunky. |
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Ethanol |
28 to 193% |
27 to 29% |
Corn ethanol may emit 500% more greenhouse gases than gasoline if grown on land that once absorbed CO2. |
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Biodiesel |
70 to 150% |
68% |
Burning down a rainforest to produce palm biodiesel is a bad idea—who knew? |
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Natural |
70% |
0% |
Only one model on the market. NG is cheap and abundant, but a fossil fuel. |
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Hydrogen |
42 to 67% |
0% |
Current models cost $1 million. A car with a 300-mile range would need a trunk-size fuel tank. |
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