Swarf Happens: The Microscopic Metal That’s Killing Modern Engines

08/12/2025 10 min
Swarf Happens: The Microscopic Metal That’s Killing Modern Engines

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Episode Synopsis

This episode explores the mystery of modern engine failures. Today’s aluminum, turbocharged, tight-tolerance powertrains deliver incredible efficiency — but they’re much less forgiving. Tiny machining debris, called swarf, can turn thin oil into grit, leading to recalls across major brands. We explain the physics, manufacturing challenges, and owner habits that matter: correct oil specifications, timely changes, and patience during warm-up. Precision powers the engine; cleanliness keeps it running.

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