$29 for a Smog-Emissions Test at San Leandro Test Only ($90 Value)

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Up to 68% Off

Customer Reviews

289 Ratings

Very fast service!! Extremely impressed!
Munazzar T. · September 20, 2014
I must have come on a great day cuz I was in and out in less than 20 minutes. Called to make an appointment, got there 15 minutes early and he took me almost immediately. And the price is great. Can't beat it! I'll be sending everyone I know here!
Lorraine O. · September 20, 2014
Good Service,Fast and Nice Job!
Deliang L. · September 16, 2014

What You'll Get


The Deal

  • $29 for smog-emissions test for any vehicle type ($90 value)

Catalytic Converters: Keeping Combustion Clean

Cleaner cars make for cleaner air. Learn how catalytic converters help with Groupon’s guide.

A car’s engine is a dirty place, and it produces even dirtier exhaust. Vapors exit the combustion chamber carrying a nasty trio of smog promoters: nitrogen oxides, hydrocarbons, and carbon monoxide. As these pollutants barrel through the exhaust manifold (the set of tubes that feeds exhaust from each cylinder into the exhaust pipe), there's only one thing standing between them and the innocent air outside: the three-way catalytic converter.

Situated just before the muffler, the converter is home to honeycombed ceramic cores coated with some combination of platinum, rhodium, and palladium—three rare metals that interact with the main components of the pollutants. When exhaust enters, the metals trigger chemical reactions that heat the gases and rearrange their molecules. Under their influence, nitrogen oxides splinter into pure oxygen and nitrogen, while hydrocarbons and carbon monoxide are oxidized into less-harmful carbon dioxide and simple water. Since their introduction during the 1975 model year, these unseen cleaners have made air more breathable and much tastier: the EPA estimates that cars built today are 98% cleaner than their counterparts from the 1960s.

The Fine Print


Promotional value expires 180 days after purchase. Amount paid never expires. Appointment required, 24 hour advance notice required. Merchant's standard cancellation policy applies (any fees not to exceed Groupon price). Limit 3 per person. Limit 3 per visit. Valid only for option purchased. Extra fee of $8.25 required by State of California for Certificate. Extra $10 on vehicle model's 1999 and older. Not Valid with other promotions. Not valid for RV's and Box Vans. Not valid for company owned vehicles. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

About San Leandro Test Only


Drivers head to San Leandro Test Only to have their vehicle's emissions tested. Once their vehicle passes, drivers can renew their registration and make sure that their vehicle is smog certified.

By purchasing this deal you'll unlock points which can be spent on discounts and rewards. Every 5,000 points can be redeemed for $5 Off your next purchase.