Quaker State 10W-40 conventional motor oil helps engines survive daily commutes from high-speed highway operation to repetitive, stop-and-go driving. It maintains the required viscosity from start to finish, providing optimal protection. Quaker State Motor Oil combats engine sludge and deposits, providing rust protection from harmful acids generated by engine contaminants. It reduces engine wear, providing durable wear protection. Quaker State 10W-40 Motor Oil exceeds the requirements of the following industry specifications: API SN and all previous categories. For a full list of equipment approvals and recommendations, please consult your local Quaker State Technical Help Desk and always consult your owner?s manual.

Conventional that provides durable wear protection and reduces engine wear,Provides corrosion protection against harmful acids generated by engine contaminants,Maintains viscosity from start to finish, providing optimal oil film protection,Helps engines survive daily commutes from high-speed highway operation to repetitive, stop-and-go driving,Combats engine sludge and deposits,Formulated to exceed the requirements of industry specification API SN and all previous categories,Case of three 5-quart bottles with ergonomic design for easy handling and pouring,Formerly known as Quaker State Advanced Durability motor oil