Emissions Testing
A recent independent test performed on Griffin's yellow grease biodiesel and animal fat biodiesel (used at a 20% blend), in conjunction with 80% U.L.S.D., showed no increase in nitrous oxides.

This was hot start emission test conducted as specified in Code of Federal Regulations 40, Part 86, Subpart N.

March 2005
ULSD/B20
Yellow Grease Biodiesel
Animal Fat Biodiesel
Hydro Carbon
-12.5%
-14%
Carbon Monoxide
-13.5%
-10.5%
NOx
0
0
Particulate Matter
-18%
-22%