How often should I really change my fuel/water separator filter? This is one of the most crucial maintenance questions. There isn't a single answer that fits all applications, but the rule of thumb is to follow the OEM-recommended service intervals in your owner's manual, which are typically based on mileage or hours of operation. However, you should change it immediately if you notice: The indicator light on your Water-In-Fuel (WIF) sensor is illuminated. A decrease in engine power, hard starting, or rough idling. You are in an environment with a high risk of contaminated fuel. Remember, the primary job of the fuel/water separator is to remove water, which can cause catastrophic damage to your fuel injectors. When in doubt, drain the separator regularly and change it early. https://www.cq-longshine.com/cummins-filter-system-parts

What's the real difference between a genuine Cummins filter and an aftermarket one? While aftermarket filters might look similar and cost less, the difference is in the details and quality. Genuine Cummins Fleetguard filters are engineered specifically for your engine model. Precise Filtration: They are designed with exact media porosity and pleat counts to capture harmful contaminants without restricting the vital flow of oil, fuel, or air. Superior Construction: They feature robust housings, anti-drain back valves, and high-quality gaskets to prevent leaks and ensure consistent performance. Guaranteed Protection: Using a genuine filter guarantees that it meets Cummins' strict engineering standards, protecting your engine and preserving your warranty. An off-brand filter is a gamble with your engine's health. https://www.cq-longshine.com/cummins-filter-system-parts