WEBLUBE HD Chain Oil is specifically designed for the lubrication of chains and guide bars on modern high-speed chain saws operating under severe conditions. It is recommended for spring, summer and fall over a range of ambient temperatures from -6 °C to +50 °C. WEBLUBE HD Chain Oil can also be used in industrial applications where tacky anti-wear oil is preferred. This includes chain drives and plain bearings. WEBLUBE HD Chain Oil is not recommended as chain saw engine lubricants.