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In order to meet regulatory standards for vehicle emissions, Low Emission Vehicle II (LEV-II) and Partial-Credit Zero Emission Vehicle (P-ZEV) requirements, we examined the application of stainless steel to fuel system parts, such as the fuel inlet pipe and fuel tank. We improved the formability and durability of ferritic stainless steel by improving its mechanical properties, and by applying an organic-lubricant coating and cationic electrodeposition coating, so that that fuel inlet pipe made of ferritic stainless steel SUS436L (17Cr-1Mo-Ti) with the cationic electrodeposition coating is now suitable for the mass production of cars, having high durability and low evaporative emissions.