Keeping up with regular oil changes for your vehicle is important. Over time, gunk and sludge can can build up and inhibit the performance or even shorten the life of your vehicle. When you are looking for a reliable motor oil, turn to Super Tech. Super Tech Heavy Duty SAE 15W-40 Motor Oil is designed for the hardest working vehicles. It can be used it gasoline or diesel engines, making it a versatile alternative to some other motor oils. Super Tech Heavy Duty 15W-40 Motor Oil is engineered for fleet and farm requirements and is especially suitable for heavy duty over-the-road gasoline and diesel engines as well as farm and construction equipment. Super Tech Heavy Duty 15W-40 Motor Oil provides advanced wear protection and can be used in turbo-charged or low emission diesel engines.  Super Tech Heavy Duty SAE 15W-40 Diesel Oil meets requirements for all diesel and gasoline automotive engines where SAE 15W-40 API CK-4/SN, CJ-4, CI-4 or previous standards are specified.   When you need a quality motor oil for your heavy duty equipment, turn to Super Tech.