Good understanding of oil viscosity chart saves money
Learning oil viscosity chart helps you in saving money by changine oil in your car yourself.Motor oil protects your engine from friction by forming a thin layer between rotating parts.
SAE has graded oils based on temprature viscosity relationships.Understanding SAE grades will help you in purchasing oil of perfect grade in your climate.Always remeber that viscosity will decrease with increasing temprature.Always buy a multi grade oil to counter this problem.Engine is cold when you are starting your car in morning but the temprature increases once it is running on road.So your motor oil much perform different grading roles.Multi grade oils keep the perfect viscosity on both low and high temprature.