The GM Duramax 3.0L LZ0 engine relies on a Diesel Particulate Filter, or DPF, to reduce emissions. Now, we're taking a closer look at the DPF on the 3.0L LZ0.

This story is part of The Race Issue, a special issue of National Geographic that explores how race defines, separates, and unites us. About this story The Undefeated—an ESPN website that explores the ...

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David Kindness is a Certified Public Accountant (CPA) and an expert in the fields of financial accounting, corporate and individual tax planning and preparation, and investing and retirement planning.

DPF-related issues are common in modern diesel cars, especially when they are used primarily in city stop-go traffic, so your frustration is understandable. Shifting to a petrol car makes sense. You ...