Greek Environment Ministry, Athens, Greece, May 9, 1991
Particulate Tests, Diesel
These tests were conducted by the Greek Ministry of the Environment to determine the reduction in black smoke emissions. The results were:
| Test | % Increase or Reduction |
|---|---|
| Particulate Reduction | -29% |
Technical Institute for Urban Transportation,
Sofia, Bulgaria, May 18, 1994
These tests were conducted under stringent conditions to determine particulate reduction and fuel economy. The results were:
| Test | % Increase or Reduction |
|---|---|
| Particulate Reduction | -30 to -50% |
| Miles Per Gallon (MPG) | +2.66% |