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Hot Shot’s Secret Expands Engine-Oil Filtration With a Fine-Particle Bypass System

Engine Maintenance

Hot Shot’s Secret Expands Engine-Oil Filtration With a Fine-Particle Bypass System

The new Pure Diamond package adds depth-media filtration, vehicle-specific hardware, serviceable elements, and an oil-management program for diesel and custom applications.

Cylinder Head Cleaning

Nine Cylinder-Head Truths That Debunk the Average Rebuild Advice

The most powerful production six-cylinder is a Porsche flat-six, not a V6—and before you touch a gasket, strip the head completely or risk catastrophic wear. Cast iron and aluminum demand opposite cleaning strategies, degreasers need six to eight hours, and pressure washing is non-negotiable. Flash-rust appears in minutes; hairline cracks hide until you look.

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