Timberline Premium Bar & Chain are tacky lubricants made from high viscosity index base oils with the desired flow and pump ability properties to ensure adequate lubrication over a wide temperature range. Timberline Premium Bar & Chain have excellent retention time, superior tackiness, and high surface tension.Timberline Premium Bar & Chain provides premium protection in warm climates and for commercial applications with a higher viscosity.These oils can also be used as a general lubricant where no specific performance properties are required.These products should NOT be used as an engine oil or as a transmission fluid.