Engine oil sludge is one of the leading hidden causes of premature engine failure in modern vehicles. Formed by degraded oil, contaminants, and excessive heat, sludge restricts lubrication and accelerates internal wear. Regular oil changes, using the correct engine oil, and following manufacturer maintenance schedules can help prevent sludge buildup. If severe damage has already occur... https://usedenginepart.com/how-engine-oil-sludge-quietly-destroys-modern-engines-and-what-drivers-can-do-to-prevent-it-in-2026/