Resources & FAQ

Everything you need to know about California smog checks

Frequently Asked Questions

Tips to Help Your Vehicle Pass

1

Warm Up Your Engine

Drive your car for about 20 minutes before arriving at your smog inspection center. This gives your car enough time for proper engine combustion.

2

Check Tire Pressure

Uneven, worn tires and incorrect tire pressure may cause incorrect emission test results.

3

Use Fuel Additives

Emission levels can be lowered by using fuel additives to the gas tank, which improves your combustion process and engine performance.

4

Change Your Oil

Regular oil changes can help you pass your smog check. Bad fumes from your oil pan can leak into your engine and cause a failed inspection.

Helpful Resources

Since the smog check program and California smog requirements are subject to changes, we have provided the following websites for smog test history, STAR smog stations list, smog check CAP application, and local DMV information.

Local DMV Information

Hours

Mon – Fri: 9:00 AM – 5:00 PM | Sat: 9:00 AM – 3:00 PM | Sun: Closed