Custom Plus™ Motor Oils feature premium base oils in formulation with proven high-quality anti-wear additives. This oil is designed for use in gasoline engines, combining versatility, heavy-duty engine protection and cost effectiveness into one motor oil. It is formulated with high levels of dispersant and detergent additives that effectively control sludge and varnish to help prevent corrosion, wear and deposits. Custom Plus Motor Oils are excellent for all-season use in automotive gasoline engines. Custom Plus Motor Oils SAE 5W-20 and 5W-30 show acceptable performance where API SL is recommended. Custom Plus Motor Oils 10W-30, 10W-40 and 20W-50 show acceptable performance where API SJ is recommended.