🔍 Key Concepts

• Automatic backflushing lube oil filters and what the term "automatic" implies in operation • How self-cleaning filters handle dirt/sediment versus traditional cartridge or duplex filters • The role of differential pressure across a filter as an indicator of filter condition or clogging

💭 Think About

• Think about what makes backflushing systems different from cartridge or duplex filters in terms of daily manual work • Ask yourself: if the filter is advertised as self‑cleaning/automatic, what kind of routine operator attention is still critical for engine safety? • Consider which tasks would be reduced or eliminated by an automatic system, and which parameter still tells you if something is going wrong inside the filter

✅ Before You Answer

• Which options talk about manual, frequent actions that an automatic/self‑cleaning system is specifically designed to reduce or eliminate? • Which option involves watching an indicator of restriction or clogging rather than physically cleaning or changing filters? • Eliminate any choice that contradicts the idea of no disposable elements and reduced manual switching between filter units in an automatic system