Pure Diamond

Pure Diamond Bypass Oil Filter Kits

Pure Diamond™ Bypass Oil Filter Kits from Hot Shot’s Secret® are designed for drivers and diesel enthusiasts who want to take a more proactive approach to engine oil maintenance. Unlike a standard full-flow oil filter that must prioritize oil flow, a bypass oil filtration system routes a controlled portion of engine oil through dense filter media for finer filtration. The result is continuously cleaner oil circulating through the engine over time.

Pure Diamond works alongside the factory oil filter; it does not replace it. This supplemental filtration approach helps remove ultra-fine contaminants that can contribute to long-term wear, including soot, dirt, and wear metals. When paired with the right oil, routine oil analysis, and a complete maintenance strategy, bypass filtration can help support extended oil drain intervals and long-term engine durability.

Why Choose a Bypass Oil Filtration System?

Modern engines rely on clean, stable oil to protect critical components under heat, load, towing, idling, and high-mileage use. A full-flow filter is essential for immediate engine protection, but it must allow all oil to move quickly through the system. A bypass oil filter takes a different approach by filtering a smaller portion of oil at a slower, controlled rate, allowing for finer contaminant control without interrupting normal oil flow.

• Helps maintain cleaner engine oil over time
• Works with the OEM full-flow oil filter
• Supports long-term engine protection by targeting fine contaminants
• Can be used as part of an extended oil service strategy when guided by oil analysis
• Adds oil capacity and supports a more complete oil maintenance program

Application-Specific and Universal Bypass Filter Kits

Pure Diamond bypass oil filter kits are available for popular diesel platforms, including Cummins®, Duramax®, and Power Stroke® engines, along with universal bypass filter kits for custom installations. Application-specific kits are designed to simplify installation and support proper system integration, while universal options give experienced installers added flexibility.
 

Build a Complete Oil Maintenance Strategy

For best results, bypass filtration should be viewed as part of a complete oil management plan. Pair Pure Diamond with high-quality engine oil, routine oil analysis, and additive support when needed. Hot Shot’s Secret® Blue Diamond® PAO Engine Oil provides a stable foundation, while TBN Booster® can help replenish key additives as oil chemistry changes over time. Together, these tools help users actively manage oil condition instead of relying on mileage alone.
 

Shop Pure Diamond Bypass Oil Filter Kits

Explore Pure Diamond bypass oil filter kits and accessories to find the right setup for your truck, fleet vehicle, or custom application. Whether you are focused on cleaner oil, proactive diesel maintenance, or a more complete oil service strategy, Pure Diamond gives you a practical way to help protect your engine with advanced bypass oil filtration.