This table shows the effectiveness of B100 BioDiesel in reducing greenhouse
gas emissions compared to other types of vehicles including the ULEV Toyota
Prius:
Comparison of CO2 (Greenhouse gas) emissions
in 2004 VW Jetta Wagon using various engines/fuels
Model
City MPG
Highway MPG
CO2 tons/year
Automatic 2L Gasoline
23
30
7.4
Automatic TDI 1.9L PetroDiesel
32
43
5.8
Automatic TDI 1.9L B20 BioDiesel
32
43
4.9
Automatic TDI 1.9L B100 BioDiesel
32
43
1.3
for comparison:
2004 Toyota Prius
60
51
3.5
2004 Ford Explorer 4L 2WD
16
21
10.7
NOTES:
based on fuel economy numbers
from http://www.fueleconomy.gov/feg/findacar.htm using 15,000 miles
driven per year, 45% highway, 55% city driving. BioDiesel reduction
numbers from NREL study http://www.nrel.gov/vehiclesandfuels/npbf/renewable_diesel.html
CO2 reduction from BioDiesel is
due to the closed loop of the fuel cycle from plant to combustion
and back
In the future we'll add other emission components to this page.