ACDelco

ACDelco is General Motors' original equipment manufacturer (OEM) parts brand, covering replacement parts, fluids, and chemicals for GM vehicles. The fluid lineup includes GM-spec transmission fluids (Dexron-VI, Dexron-HP), motor oils, coolants, and fuel system products — all manufactured or sourced to GM Material Specifications. Transmission fluids carry GM's own Dexron licensing and are the reference products against which aftermarket alternatives are measured. The ACDelco Tools line is a separate product segment manufactured by Durofix, Inc. under license, covering torque wrenches, impact wrenches, and digital measurement tools for professional and home mechanic use.