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Verified Retrofit Technologies from PUREM
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| Technology | Engine Model/Application |
Retrofit Fuel, Max Sulfur (ppm) | Reductions (%) † | |||
|---|---|---|---|---|---|---|
| PM | CO | NOx | HC | |||
PUREM PMF Green-Tec Particulate Filter/Catalyst |
Highway, medium-heavy duty up to 280 hp, 4 cycle, non-EGR, model year 1998 - 2003, turbocharged or naturally aspirated engines | 15 ppm | 90 | 85 | n/a | 90 |
† - Baseline assumes an unmodified engine running on diesel fuel of less than 15 ppm sulfur.
The following operating criteria must be met in order for appropriately retrofitted engines to achieve the above emissions reductions:
- The engine should be well maintained and not consume lubricating oil at a rate greater than that specified by the engine manufacturer.
- The engine must be operated with a fuel that contains a sulfur content of no more than 15 ppm.
- The engine exhaust temperature must be at least 250° C for 40% of the duty cycle. (As there may be variations from application to application, temperature data-logging and a review of vehicle operating conditions is required prior to retrofitting a vehicle to ensure compatibility.)
- PUREM will install a backpressure monitor on all vehicles equipped with the PMF Green-Tec filter/catalyst with a warning light for the driver.
| Technology | Engine Model/Application |
Retrofit Fuel, Max Sulfur (ppm) | Reductions (%) † | |||
|---|---|---|---|---|---|---|
| PM | CO | NOx | HC | |||
| PUREM PMF Green-Tec 230 Particulate Filter/Catalyst | Highway, medium-heavy duty up to 230 hp, 4 cycle, non-EGR, model year 1998 - 2003, turbocharged or naturally aspirated engines | 15 ppm | 90 | 80 | n/a | 95 |
† - Baseline assumes an unmodified engine running on diesel fuel of less than 15 ppm sulfur.
The following operating criteria must be met in order for appropriately retrofitted engines to achieve the above emissions reductions:
- The engine should be well maintained and not consume lubricating oil at a rate greater than that specified by the engine manufacturer.
- The engine must be operated with a fuel that contains a sulfur content of no more than 15 ppm.
- The engine exhaust temperature must be at least 250° C for 40% of the duty cycle. (As there may be variations from application to application, temperature data-logging and a review of vehicle operating conditions is required prior to retrofitting a vehicle to ensure compatibility.)
- PUREM will install a backpressure monitor and a high backpressure indicator light on all vehicles equipped with this product.
- The blending of lube oil with fuel is prohibited with this product.