Which of the following actions can a vehicle owner take to avoid failing an emissions test?

Regularly maintaining a vehicle plays a crucial role in ensuring that it meets emission standards. Proper maintenance involves routine checks and servicing, which can include oil changes, air filter replacements, and ensuring that the fuel system is functioning optimally. These tasks help to reduce harmful emissions by ensuring that the engine runs efficiently and that all components are operating as they should. In turn, this proactive approach significantly minimizes the risk of failing an emissions test, as a well-maintained vehicle is less likely to emit excessive pollutants.

In contrast, actions such as driving longer distances without maintenance, skipping scheduled maintenance checks, or ignoring warning lights can lead to deterioration in vehicle performance and increased emissions. Neglecting these essential aspects can result in problems that may cause a vehicle to fail emissions testing, as they directly affect how cleanly and efficiently the vehicle operates.