The California Air Resources Board has approved an extension to the Cleaire LongMile diesel particulate filter verification.


This extension means that owners of trucks and buses powered by engines equipped with an OEM diesel oxidation catalyst, such as the family of Caterpillar ACERT diesel engines, can now retrofit those engines with the Cleaire LongMile DPF. This extension makes the LongMile applicable to essentially all model year 1994 through 2006 four-cycle engines.

When compared to other passive DPFs, the LongMile's low temperature requirement allows for broader engine / duty cycle application and greater flexibility in duty cycle changes without compromising the filter's ability to regenerate, according to the company.

Furthermore, LongMile's greater ash capacity means triple the time between filter de-ashing compared to similar sized channel wall-flow filters, Cleaire says.

The LongMile, manufactured by Cleaire Advanced Emission Controls in San Diego, is a Level 3+ CARB verified emission control device used to reduce particulate matter in diesel exhaust. The LongMile DPF uses a sintered metal material that is exclusively available to Cleaire. According to Cleaire, the filter has several advantages over conventional DPFs, namely low backpressure, high ash holding capacity, and low exhaust temperature requirements.

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