Executive order
D-393-11
Johnson Matthey, Inc.
Vehicle applications
No vehicle applications were preserved for this order.
Part records
| Part number | Model/specification | Modification | Remarks |
|---|---|---|---|
| 1991-2002 Caterpillar 3208, 3116, 3126, 3306, 3406, C10, C12, C15, C16 (all hp). This exemption applies to 1991-2002 4-stroke heavy-duty diesel engines originally certified to meet a particulate matter emission standard of 0.10 g/bhp-hr or lower. | This exemption is only valid provided the engines meet the following operating conditions: (1) the engine exhaust temperature is greater than or equal to 210 degrees Celsius for 40 percent of the typical duty cycle, (2) the NOx to PM ratio is at least 8, and (3) the engine is operated using diesel fuel with a maximum sulfur content of 50 ppmw. |