Which mechanism causes increased drag when lubricating oil degrades inside an engine?

💡 Explanation

Increased lubricant degradation means oil viscosity decreases; this increases fluid boundary layer thickness because viscous damping is reduced. Therefore, drag at components increases rather than decreases unlike with alternative optimal fluid film thickness designs.

• Which outcome results when iterative solutions fail in computational fluid dynamics?
• Which consequence results when a high-impedance probe perturbs the wavefunction of a quantum dot?
• Which consequence results during pump operation when net positive suction head available falls below a design number?
• Which outcome occurs upon application of external magnetic field to transition metal complex via ligand field splitting?
• Which effect on a satellite's atomic clock results because of gravitational equivalence?
• Which consequence results when single electrons tunnel through a quantum dot?