Lucas SAE 10W-30 is a formulation of only the finest light base oils plus an exclusive additive package that includes lubricity agents and anti-seize agents that control drag like a zero weight oil and protect like a heavy multi-viscosity oil. Lucas SAE 10W-30 is the perfect lubricant for extreme low temperatures or extreme high temperatures and blends with synthetic or regular motor oil. Designed for use in gasoline engines only. Meets or exceeds all manufacturers specifications for SAE 10W-30 and API SN and ILSAC GF 5. Exceeds ACEA A3-04, B3-04 and B4-04. This excellent product provides the consistent viscosity needed for peak performance.