Which statement is not a potential effect of dirty air filters?

Which statement is not a potential effect of dirty air filters?

• A. Increase Fuel Efficiency
• B. Allow Impurities To Damage The Engine
• C. Decrease Fuel Efficiency
• D. Both A And B

Answer: (A)

Dirty air filters restrict the amount of air that can reach the engine, which disrupts the optimal fuel-air mixture. When the engine doesn’t get enough clean air, it tends to run less efficiently, often burning more fuel relative to the power produced and promoting deposits inside the engine. The filter also serves to keep impurities out; when it’s dirty, impurities can bypass the filter and cause wear or damage to engine components over time. So the effects you would expect from a dirty air filter are decreased fuel efficiency and potential damage from contaminants. An increase in fuel efficiency is not something a dirty filter would cause, which is why that statement isn’t a potential effect.

Dirty air filters restrict the amount of air that can reach the engine, which disrupts the optimal fuel-air mixture. When the engine doesn’t get enough clean air, it tends to run less efficiently, often burning more fuel relative to the power produced and promoting deposits inside the engine. The filter also serves to keep impurities out; when it’s dirty, impurities can bypass the filter and cause wear or damage to engine components over time. So the effects you would expect from a dirty air filter are decreased fuel efficiency and potential damage from contaminants. An increase in fuel efficiency is not something a dirty filter would cause, which is why that statement isn’t a potential effect.