Penrite HPR 5 is a premium, full synthetic 5W-40 engine oil featuring Penrite's Double Layer of engine wear protection. This oil incorporates Penriteâs Full Zinc additive package, creating a sacrificial layer on critical engine components to protect them from metal to metal contact and cold start wear. This oil also features Penriteâs Extra Ten technology, providing increased oil pressure and internal engine protection in high temperature and severe operating conditions. With a combination of the latest additive technology and a low shear rate viscosity modifier, HPR 5 ensures addition protection against wear, corrosion, oil oxidation, piston deposits and sludge formation under high load conditions and high ambient temperatures. Suitable for use in modern multi-cam and multi-valve petrol, LPG, E10, E85, Diesel and LPG powered vehicles. Not recommended for use in diesel engines fitted with diesel particulate filters. If using with E85 it is recommended to increase servicing frequency to ensure maximum oil performance is retained. To find the oil type and viscosity suggested for your vehicle; either add your vehicle to My Garage or check with your manufacturer, vehicle user manual, your local mechanic or head in-store and talk to one of our friendly team.