This retrofit technology is included on EPA's Verified Technologies List for Clean Diesel.
Nonroad, 4-cycle, non-EGR equipped, model year 1996-2005, turbocharged engines with power ratings 130 ≤ KiloWatts < 225 (174.2 ≤ Horsepower < 301.5)
|Retrofit Fuel, Max Sulfur||30 parts per million (ppm)|
|Reduction in particulate matter (PM)||89%|
|Reduction in nitrogen oxide (NOx)||n/a|
|Reduction in hydrocarbons (HC)||93%|
|Reduction in carbon monoxide (CO)||90%|
a Baseline assumes an unmodified engine running on 15 ppm sulfur fuel.
The following operating criteria must be met in order for appropriately retrofitted engines to achieve the above emissions reductions:
- The engine must be operated with a fuel that contains a sulfur content of no more than 30 ppm.
- The DPF requires an exhaust temperature of 260° C for 40% of the cycle for NOx:PM ratios of less than or equal to 20:1 and for NOx:PM ratios equal to or greater than 25:1, only 200° C for 40% of the cycle is required. (As there may be significant variations from application to application, Caterpillar will review actual vehicle operating conditions and perform temperature data-logging prior to retrofitting a vehicle with their PM filter system to ensure compatibility.)
- Caterpillar will install a backpressure monitor and high pressure indicator light on all vehicles equipped with this DPF.
- The engine should be well maintained and not consume lubricating oil at a rate greater than that specified by the engine manufacturer. Crankcase oil burning systems may not be used with this product.
- Verification Letter (PDF)(2 pp, 105 K, June 17, 2005)