Which base requires separate minimum oil quantities for NG and MAX?

Which base requires separate minimum oil quantities for NG and MAX?

• A. MX base
• B. NON-MX base
• C. Both bases
• D. Neither base

Answer: (B)

Lubrication needs can vary with operating state, so some bases require different minimum oil quantities depending on the state. NG and MAX represent two operating conditions with distinct heat and flow characteristics, which change how much oil is needed to keep the system properly lubricated. In the NON-MX base, those demands aren’t identical, so a single minimum oil quantity wouldn’t reliably cover both states. To ensure adequate lubrication and safe operation in each condition, the specification uses separate minimum oil quantities for NG and MAX. In contrast, an MX base is designed so one minimum oil quantity satisfies both states, so it does not require separate minima. Therefore, the base that requires separate minima is the NON-MX base.

Lubrication needs can vary with operating state, so some bases require different minimum oil quantities depending on the state. NG and MAX represent two operating conditions with distinct heat and flow characteristics, which change how much oil is needed to keep the system properly lubricated. In the NON-MX base, those demands aren’t identical, so a single minimum oil quantity wouldn’t reliably cover both states. To ensure adequate lubrication and safe operation in each condition, the specification uses separate minimum oil quantities for NG and MAX. In contrast, an MX base is designed so one minimum oil quantity satisfies both states, so it does not require separate minima. Therefore, the base that requires separate minima is the NON-MX base.