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Feature

Wear is one of the toughest enemies your engine faces. It can reduce engine life and rob you of power. That's why Quaker State HD motor oils are engineered to reduce wear and protect against high temperature and severe service operation.
Quaker State HD motor oils meet or exceed API SN and prior API SM, SL, SJ service categories
HD motor oil contains acid neutralizing additives to stop combustion acids from corroding your engine
HD Motor Oil used oil (standard oil for the vehicle), still passed the Industry wear requirements. Provides stay in grade viscosity throughout the oil drain period

Description

Quaker State HD SAE 30 motor oils are formulated to deliver consistent wear and viscosity protection throughout the life of the oil. Independent laboratory tests show that HD motor oils beat industry wear standard with 3X better wear protection. The used oil (standard oil drain, for the vehicle), also passed the Industry Standard. Today's vehicles and their busy drivers need today's HD motor oil.