Product Description: This new universal hot pad heater is silicone covered, acid resistant, and pliable enough to usewith most cars, trucks, and tractors. The heater pad is 5.5" x 8.5", 120V, and 500 watts. It iseasy to install and can be used to warm your engine oil pan (20-35 quarts), diesel tank (20-30 gallons), hydraulic tank (20-30 gallons), and water tank (7-10 gallons) during freezingtemperatures. This heater pad is designed to be used on cars, trucks, RVs, snowmobiles, tractors, generators and other equipment.