Answer: It depends on your vehicle and driving habits, but a general rule is every 5,000 to 7,500 miles for most modern cars using synthetic oil. Check your owner’s manual for the manufacturer’s recommendation, as some older vehicles or those under heavy use (like towing or frequent short trips) may need changes every 3,000 miles. Regular oil changes keep your engine running smoothly and prevent wear.

Answer: The check engine light indicates a problem with your vehicle’s engine, emissions system, or related components. It could be something minor, like a loose gas cap, or more serious, like a failing oxygen sensor or catalytic converter. The best step is to bring your car to our shop for a diagnosis. Don’t ignore it—driving with an unresolved issue could worsen the damage.

Answer: Check the tread depth: if it’s below 2/32 of an inch, it’s time for new tires (use the penny test—insert a penny into the tread with Lincoln’s head down; if you can see the top of his head, the tread is too low). Also, look for signs of uneven wear, cracks, bulges, or punctures. Most tires last 25,000 to 50,000 miles, but driving conditions and maintenance (like rotation and alignment) affect their lifespan. Bring your vehicle to AJ's to have it inspected.