Emissions Reduction

Emission Assessments Pty Ltd (EAPL) were engaged by micfil Australia to conducted 

independent exhaust evaluations on a static John Deere 5820 Tractor. Testing was 

conducted on two occasions, being pre-Filter installation and Post Filter installation, 

with a differential of 200 engine hours, post installation. 

The analytes of intertest were determined to be carbon monoxide, hydrocarbons, and 

total particulate. Testing was conducted at idle setting, at 2100 revolutions per minute, 

and 2100 revolutions per minute under a load. 

The results indicate  REDUCTIONS of emissions across the analytes of interest, as follows: 

Carbon Monoxide (CO) Idle: REDUCED 33% 

Carbon Monoxide (CO) 2100 rpm: REDUCED  75% 

Carbon Monoxide (CO) 2100 rpm (load): REDUCED 71% 

Hydrocarbons (HC) Idle: REDUCED 32% 

Hydrocarbons (HC) 2100 rpm: REDUCED 12% 

Hydrocarbons (HC) 2100 rpm (load): +23% (Increase) 

Total Particulate Matter (TPM) Idle: REDUCED  19% 

Total Particulate Matter (TPM) 2100 rpm: REDUCED 70% 

Total Particulate Matter (TPM) 2100 rpm (load): REDUCED 43% 

The preliminary data would suggest the following outcomes on the John Deer 5820 

Tractor engine, after Micfil modification. 

1. Increases in Carbon Dioxide emission is typically associated with increases in 

combustion efficiency. 

2. Particulate matter decreasing with load, across all conditions. 

3. Carbon Monoxide reduction significant post installation, across all conditions. 

In consideration of the limited emission data set for interpretation purposes, the data 

would suggest that there has been an improvement in the performance of the engine 

after modification.