DPF Performance and Analysis

Composition of Diesel Particulate Filter Ash and
Confirmation that FSX Pneumatic Cleaning Process
does not Damage Washcoats

Ash tested came from three random samples taken at FSX Inc. from the waste bins on the ash collection system.
On any given day FSX cleans a wide variety of DPF and catalysts that are manufactured or distributed by numerous OEM's.

The ash collected in the random samples likely came from DPF distributed by:

Caterpillar	Cleaire	Cummins	Detroit Diesel	DCL
Donaldson	Ford	Huss	Paccar	Volvo

Filters are incoming from multiple customers nationwide using a variety of fuels and lubricants.
Approximately 54% of the DPF being cleaned are catalyzed; DOC's compose approximately 9% of the volume.
The elements listed below were found in the form of common oxide compounds.
The percentages of each ash element can change from test to test but the list of elements is unlikely to change.

Sorted Alphabetically by Element

Periodic symbol	Element name	% by weight

Al	Aluminum	16.200%
Ca	Calcium	17.400%
Ce	Carbon	17.638%
Co	Cobalt	0.100%
Cr	Chromium	0.480%
Cu	Copper	0.230%
Fe	Iron	8.440%
K	Potassium	2.100%
La	Lanthanum	0.063%
Mg	Magnesium	3.220%
Mn	Manganese	0.130%
Mo	Molybdenum	0.340%
Na	Sodium	4.220%
Ni	Nickel	0.360%
P	Phosphorus	14.000%
Pd	Palladium	0.048%
Si	Silicon	7.170%
Ti	Titanium	0.082%
Zn	Zinc	7.690%
Zr	Zirconium	0.089%

	Total	100%

Sorted by % of Weight - High -> Low

Rank	Symbol	Element	% by Weight	Cumulative Percentage

1	Ce	Carbon	17.638%	17.638%
2	Ca	Calcium	17.400%	35.038%
3	Al	Aluminum	16.200%	51.238%
4	P	Phosphorus	14.000%	65.238%
5	Fe	Iron	8.440%	73.678%
6	Zn	Zinc	7.690%	81.368%
7	Si	Silicon	7.170%	88.538%
8	Na	Sodium	4.220%	92.758%
9	Mg	Magnesium	3.220%	95.978%
10	K	Potassium	2.100%	98.078%
11	Cr	Chromium	0.480%	98.558%
12	Ni	Nickel	0.360%	98.918%
13	Mo	Molybdenum	0.340%	99.258%
14	Cu	Copper	0.230%	99.488%
15	Mn	Manganese	0.130%	99.618%
16	Co	Cobalt	0.100%	99.718%
17	Zr	Zirconium	0.089%	99.807%
18	Ti	Titanium	0.082%	99.889%
19	La	Lanthanum	0.063%	99.952%
20	Pd	Palladium	0.048%	100.000%

		Total	100%

Testing conducted at:
Corning, NY

* Palladium (Pd) is one of the precious metals used in the washcoats. There was no mesureable amount of Platinum (Pt). These metals can be released by the DOC upstream or from DPF cell walls if coated. The quantity of Pd found. .048% was considered inconsequential by the testing lab and the lack of any measureable amount of Pt indicates that the FSX cleaning process does not damage the precious metal washcoats.

Downloadable copy here.