🔍 Key Concepts

• Viscosity and how temperature affects it • How oil pressure and flow rate influence filtration • Why contaminants are trapped more easily when oil flows in a certain way

💭 Think About

• Think about what happens to lube oil when it gets hotter versus colder. How does that change how easily it flows through small filter passages? • Consider whether very thick or very thin oil will pass through a filter medium more effectively, carrying particles into the filter material. • Ask yourself: is the primary job of the filter to create pressure, or to allow contaminants to be captured as oil flows through it?

✅ Before You Answer

• Verify how temperature changes viscosity of lubricating oil. • Consider whether higher pressure alone guarantees better filtration if the oil is very thick. • Check which condition would allow good flow through the filter media so contaminants can be removed efficiently.