Helpful Tips to Prepare for Your Smog Check

Keeping your vehicle properly maintained not only helps improve performance and fuel efficiency but can also reduce emissions and improve the chances of passing a smog inspection.

California has some of the nation's most comprehensive vehicle emissions standards to help improve air quality. Depending on your vehicle and registration requirements, a smog inspection may be required at certain times.

At Star Smog Check, we're committed to providing honest, reliable service. Here are a few simple tips that may help your vehicle perform its best before a smog inspection.

1. Keep Up with Regular Maintenance

Routine maintenance is one of the best ways to help your vehicle run efficiently.

Be sure to follow the maintenance schedule recommended by your vehicle manufacturer, including:

• Oil changes
• Air filter replacement
• Fuel filter replacement
• Spark plugs and tune-ups
• PCV valve inspection
• Oxygen sensor replacement (when needed)

Regular maintenance may help improve fuel efficiency and reduce vehicle emissions.

2. Drive Your Vehicle Before the Inspection

Before arriving for your smog inspection, drive your vehicle for at least 10–15 minutes.

A fully warmed engine operates more efficiently and allows the emissions system to function as intended, which may help produce more accurate inspection results.

3. Change Dirty Engine Oil

If your vehicle is overdue for an oil change, consider replacing the oil before your inspection.

Fresh engine oil can help your engine run more efficiently, while old or contaminated oil may contribute to increased emissions.

4. Check Tire Pressure

Properly inflated tires help reduce engine load during certain inspection procedures and improve overall fuel efficiency.

Check your tire pressure regularly and inflate your tires to the manufacturer's recommended pressure.

5. Make Sure the Check Engine Light Is Off

If your Check Engine light is illuminated, your vehicle may not pass a smog inspection.

Have the issue diagnosed and repaired before scheduling your inspection.

6. Drive Normally Before Your Appointment

Avoid letting your vehicle sit unused for extended periods before a smog inspection.

Driving your vehicle regularly helps keep the engine and emissions system operating properly.

7. Bring Required Vehicle Information

If applicable, bring any documents related to your vehicle registration or inspection requirements. Our team will be happy to answer your questions before your visit.

Why Choose Star Smog Check?

• STAR Certified Smog Inspection Station
• Friendly & Experienced Team
• Fast Service
• No Appointment Required
• Honest Recommendations
• Convenient Lancaster Location

Contact Us

Have questions about your upcoming smog inspection?

Call us today at (661) 948-9999.

Our friendly team is happy to help.

To insure most of your maintenance is done right the first time. Take your car to a certified ASE mechanic. If it’s time for your car to have a oil change please bring your car to us. And for your convenience we have a ASE certified tech on board who can answer your questions and specializes in oil and filter changing. We have special deals to help keep all your car fluids topped off.

If  for whatever reason your car fails the smog test there are options we suggest.

 The first option that we advise is to get your car fixed by a licensed auto technician. Please note that we are a test only facility which means we cannot perform any repairs to your vehicle. Not any mechanic can fix emissions related repairs and if the mechanic does not have a smog machine on site than he cannot guarantee your smog will pass again. So we may recommend you a list of smog and repair stations in the area that are allowed to make repairs and can guarantee you a passing smog after your repairs have been certified as opposed to going back and forth.

 Second, if you’re having financial hardship and can’t afford repairs at the moment you can ask the Department of Motor Vehicles for a extension on your next smog check. Up to 30 days is allowed. Check with DMV for details.



Next if all has failed you, and the repairs exceed the value of the car we may advise you to apply for the CAP program. Also known as The Consumer Assistance Program (CAP) is administered by the Bureau of Automotive Repair (BAR) and is designed to help improve California's air quality. Through CAP, a consumer can retire a qualified vehicle at any time and for any reason. In addition, CAP provides qualified consumers who own a vehicle that cannot pass its biennial (every other year) Smog Check inspection up to $500 in financial assistance toward emissions-related repairs.