Question

9. Avoid topping off the fuel tank because ________.

-The extra fuel simply spills onto the ground
-The extra fuel goes into the expansion area of the tank and is not used by the engine
-It can saturate the charcoal canister
-The extra fuel increases vehicle weight and reduces performance

Answer 1

Topping off the fuel tank should be avoided because it leads to wastage, doesn't benefit the engine, can damage the emissions control system, and decreases vehicle performance.

Step-by-step explanation:

Avoid topping off the fuel tank because it can have several negative consequences. First, the extra fuel simply spills onto the ground, which is wasteful and harmful to the environment. Topping off the fuel tank should be avoided because it leads to wastage, doesn't benefit the engine, can damage the emissions control system, and decreases vehicle performance.

Second, the extra fuel goes into the expansion area of the tank and is not used by the engine. Third, it can saturate the charcoal canister, which is part of the vehicle's emissions control system. Finally, the extra fuel increases the vehicle's weight and reduces its performance.