PETRONAS Urania 3000 10W-40 is a semi synthetic engine CI-4/E7 oil suitable for all types of heavy-duty diesel applications including modern, high-output, low emission engines fitted with emission control system using EGR technology. It is also suitable for new and old turbocharged and naturally aspirated diesel engines, both on-highway and off-highway, running on high or ultra-low Sulphur diesel and bio-diesel.