10 Best Flushes 2025

If you're a car enthusiast, you know how important it is to keep your engine in tip-top shape. One of the most critical components of your engine is the fuel filter, which prevents dirt and debris from contaminating the fuel that enters the engine. We reviewed and scored many products in the filter category, and we found products ranging from a 7.1 score up to a 9.6 score. But the top item on our list is the Wix Filters - 33379 Heavy Duty Spin On Fuel Water Separator. This pack of one surpasses all others in its category and will keep your engine running smoothly for miles to come. With Wix as the leading brand in flushes, you know you're getting the best of the best. Don't settle for a subpar fuel filter when you can have the best. Check out our top 10 list of flushes and see for yourself why the Wix Filters - 33379 Heavy Duty Spin On Fuel Water Separator is the clear choice for car enthusiasts everywhere.