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17338 East Foothill Boulevard, Fontana

Smog Test for One or Two Vehicles at EL Primo Smog (Up to 60% Off)

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Highlights

Ensure your vehicle is safe and complaint at an officially-licensed smog station

Customer Reviews

100% Verified Reviews
All reviews are from people who have redeemed deals with this merchant.
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J
Johnny
1 ratings1 reviews
February 2, 2021
Great customer service done in a timely manner will be back for next smog check thanks guys.
D
DebbieTOP REVIEWER
10 ratings7 reviews
December 18, 2020
Easy in, easy out.
B
BenTOP REVIEWER
6 ratings5 reviews
October 29, 2020
Fast and nice
B
Brandon
1 ratings1 reviews
October 13, 2020
Great customer service and speedy service .. Been using them for years and always great with all my cars
M
Mary
1 ratings1 reviews
September 28, 2020
Great service great friendly
D
Donald
5 ratings3 reviews
September 16, 2020
Fast, polite and professional service. For the price and service there really no other choice!
E
Eulonda
3 ratings2 reviews
August 30, 2020
No hassle, honest and quick! I am a returning customer. Recommend.
J
JolynnTOP REVIEWERHELPFUL REVIEWER
61 ratings36 reviews
August 10, 2020
Very friendly and super fast! It was so nice and convenient!
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About This Deal

Choose Between Two Options

  • $29 for a smog test for one vehicle ($60 value)
  • $49 for a smog test for two vehicles ($123 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 gasses 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.

Need To Know

Promotional value expires 120 days after purchase. Amount paid never expires. May buy one as gift. Extra $8.25 fee for California state certification. Two-vehicle option must be redeemed same day. Offer not valid for RVs and buses. $1.75 DMV fee; additional $10 fee for models 1995 and older. Appointment required. May be repurchased every 30 days. Limit 1 per visit. Valid only for option purchased. Merchant's standard cancellation policy applies (any fees not to exceed voucher price). Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

About EL Primo Smog