100% synthetic "Fuel Economy" engine oil specially formulated for recent gasoline or diesel engines, naturally aspirated or turbocharged, with indirect or direct injection that use low friction and low viscosity HTHS (High Temperature High Shear) oils. Recommended for all types of gasoline and diesel engines where a "Fuel Economy" lubricant is required: ACEA A1/B1 or ACEA A5/B5 standards. Compatible with catalytic converters. Some engines cannot use this type of lubricant. Before using it, always consult the vehicle's maintenance manual.