Modern fuel injection systems require fuel be free of both particulate and water contamination. Baldwin spin-on fuel filters with heavy-duty construction keep fuel clean and engines running at maximum efficiency. New fuel systems operate at higher pressures (up to 60,000 psi) and tighter tolerances than ever before. Microscopic particles in the fuel, as small as 2-3 microns, can cause abrasive wear severely damaging the fuel injection system and other high pressure engine components.