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Old 08-23-2010, 09:09 PM   #16 (permalink)
Duffman
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Quote:
Originally Posted by redpoint5 View Post
Precisely. Ultra Low Sulfur Diesel (ULSD, 15ppm) has replaced Low Sulfer Diesel (LSD, 500ppm) by law. This change was needed for catalytic converters to be used on diesel engines.
Not Catalytic converts but Diesel Particulate Filters (DPF) require ULSD.
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