Overcleaning apparatus can cause?

• A. Damage to paint
• B. Reduced fuel efficiency
• C. Removal of lubrication
• D. Increased weight

Answer: (C)

Overcleaning can strip away the lubricants on moving parts. When lubrication is removed by harsh cleaners or excessive washing, bearings, gears, and linkages lose their protective film. Without adequate lubrication, friction increases, causing more wear, heat, and a higher risk of component failure. That direct mechanical consequence is why removal of lubrication is the best answer. Other effects like paint damage from aggressive cleaners can occur, but they are not the primary mechanical risk, and cleaning itself doesn’t inherently reduce fuel efficiency or add meaningful weight.