Proheat Heavy Duty Fluid Reservoir Heater Model 80-12 (80 Watts, 6.7 Amp, 12 Volts DC) Ideal for Oil Pans up to 1 Gallon of Lube (3.5 Litres) and up to 5 Gallons of Hydraulic Oil. This heater is designed for Hydraulic applications - for automotive oil pans see model 154 and models 512 and 512cs. Faster/easier engine cranking in cold weather. Faster Hydraulic system use. Warms Rams. Easily installs in minutes, peel and stick application No tools required, no hoses to cut! Immediate engine oil pressure! e.g. Heats 6 quarts of oil from -40 deg F to +60 deg F in one hour Heats entire engine from the bottom up! Full three year warranty. Apply to METAL ONLY.