Change your oil every 5,000–10,000 miles, depending on your vehicle, oil type, and driving conditions, and always follow your owner’s manual for the best guidance.

Replace your air filters every 12,000–15,000 miles (or about once a year), or sooner if you drive in dusty conditions or notice reduced airflow or performance.

You may have a failing battery if your car has slow engine cranking, dim lights, electrical issues, or needs frequent jump-starts, and it’s typically a good idea to test or replace it every 3–5 years.

Improve your gas mileage by keeping tires properly inflated, driving smoothly, reducing excess weight, and staying up to date on maintenance like oil changes and air filters.