SAE J1645 FEB2026 is a stabilized SAE Surface Vehicle Recommended Practice addressing electrostatic charge phenomena in automotive fuel systems. It covers fuel systems operating with liquid fuels such as gasoline, diesel, and fuel blends containing alcohols, esters, or ethers.
The document provides recommendations for materials, components, subsystems, grounding, bonding, resistance and resistivity, charge accumulation, static dissipation, dielectric breakdown, and vehicle refueling conditions. It also includes detailed testing procedures, measurement guidance, a model compliance test protocol, and design examples for fuel lines, filters, heat shields, valves, level sensor arms, hose clamps, and other components.
Application Scope: Automotive fuel system design, component engineering, electrostatic hazard assessment, fuel delivery system testing, vehicle refueling safety, and compliance documentation.
