Penrite Premium Mineral 15w-40 is a high quality premium mineral, SAE 15W-40, friction modified engine oil made from pure Hydrocracked BASE OILS and an advanced Anti-Wear Additive system for complete engine protection. It exceeds API SN/CF specifications. Penrite Premium Mineral 15w-40 is a high quality premium mineral, SAE 15W-40, friction modified engine oil made from pure Hydrocracked BASE OILS and an advanced Anti-Wear Additive system for complete engine protection. It exceeds API SN/CF specifications. Licensed by the API (American Petroleum Institute) to meet SN specifications ensuring quality and satisfaction. APPLICATION Premium Mineral 15W-40 is designed for use in modern 4, 6 & 8+ cylinder, multi-cam, multi-valve (including VVT), naturally aspirated, supercharged & turbocharged engines. It is also suitable for use in rotary engined vehicles such as Mazda RX series vehicles that require this viscosity grade. Premium Mineral 15W-40 is designed for use petrol & LPG vehicles where SAE 15W-40 or SAE 20W-40 grade engine oils are specified. It meets the latest API SN specification providing increased wear protection, better resistance to sludge formation and lower piston deposits than previous and lower grade oils. It can also be used where previous API specifications SM (2004-10), SL (2001-04), SJ etc were recommended. It can also be used in older diesel engined vehicles where API CF or earlier is specified by the manufacturer. Premium Mineral 15W-40 is designed for use in passenger car, 4WD's and light commercial vehicles and is compatible with Petrol/LPG (Dual Fuel), E10, Diesel (without DPF) and most other conventional fuels.