First of all, the business hours are 9 to 5 Mon thru Fri, CLOSED on Sat and Sun. Secondly, I came back at 9 only to wait another 20 min before someone came into the office. When a guy finally came into the office I was greeted with "we don't open until 10am." I said, "Your sign on the door says 9 to 5." He responded gruffly, "That's when I get here." I guess you can only take this to mean, "I don't need your business." Well, don't worry, we'll be going elsewhere from now on. read more

Had to get a Smog performed on my car for my DMV renewal this year and found a coupon for this place in the Costco member discount book. I had seen one other place not too far away from this one and stopped in to price checked them first because they had advertised that you got a free tank of gas and free car wash with your smog. The guy there quoted me $70 out the door - so I guess compared to the $29.95 I was gonna get at Sonic Smog the car wash and tank of gas were not really "free." At their competitor I headed right over to Sonic Smog and Jim (I think that was his name) greeted me right away. He took my DMV renewal paperwork and Costco coupon and processed everything right away. The office was warm and clean. I signed the estimate and took a seat while he performed the smog on my car. In no time at all he had completed the smog. Jim was super friendly and professional. Once all the paperwork was completed I was out the door for under $40 (you need to pay and additional $8+ dollars for a certificate). I would defiantly recommend this shop and will be sure to use them in the future for my smog needs. It was fast, clean, discounted, and great service. Thanks Sonic Smog! read more

This place is highly unprofessional and filthy! First called to ask if they were open? Guy answers the phone and says "why wouldn't we be." He then goes on to say first come first serve and the price for a smog is $60,000 (I guess trying to be a funny guy). Against my better judgment I still showed up. The mechanic who said he was the owner, had dirt/grease covered hands and clothing and proceeded to get into my vehicle to drive into the ramp thing. After ten minutes he gives me my paperwork all in the while coughing all over the darn place, in my vehicle, with no regard for other peoples belongings or cleanliness (especially given the horrible times we are in. Grime all over my steering wheel! WILL NEVER BE BACK WITH ANY OF MY VEHICLES!!! And rest assured I will spread the word!!!!! read more

I showed up late afternoon on a Friday. Parking lot was filling fast [I by far wasn't the only 1 trying for a last second smog]. I must mention disabilities limit my mobility. I was truly willing to return the following week. These guys had many long hours everyday all week. Nope - they'd have none of my leaving. Of course my car had to be stubborn with paperwork, etc -those things vanish inside the glovebox. Look - these Guys had such a long week. It's end of day on a Friday. They took care of my smog. They were polite. They didn't guilt me for coming at end of day. On top of all that they THANKED ME for choosing them. I can't say enough on a positive note. I'm grateful for the treatment, pleasantries and general positive vibe throughout. I've bounced around smog shops, only because I try to spread my patronage around. Nope, not anymore. Not regarding smog tests. I always regret it. Stick with Randy and the team. It's the place to be for all things smog/emissions related. read more

For fast, efficient, affordable, and professional service, this is the place to be. I was in and out in about 30 mins (I showed up around the lunch hour, and there was one customer ahead of me), so they are men of their word when it comes to speedy service. The staff was friendly, helpful, and professional. Turns out my PCV valve had come loose, and they reattached it at no extra charge -- can't beat that for top notch service! Furthermore, these guys charge way less -- at least $40 less -- than other service stations for the same work, and I doubt another station would've happily reattached a PCV valve without charging something extra. For no-nonsense, top-notch service, go here. If you want frills and want someone to blow sunshine up your rear for an additional $40-50, go elsewhere. But if you're smart, you'll choose this spot. read more

I had my 29 foot RV smogged at Super Sonic and it was a great experience, especially after so many of the other places who smog RVs would only see me very early in the morning. Their flexibility was a welcome relief. The turn into the location was a little tight for my rig, and Randy came running out and drove it in for me since I"m relatively new behind the wheel...which was a huge relief, and let me know that I was in good hands. They got me in right away and I was back on the road before I know it! read more

They did a great job. Strangely, I have two Honda Odyssey vans, one 2003 and one is a 2005 and he noticed that he was about to smog the wrong van and brought it to my attention. Great attention to detail. Plus of course they gave me the lowest price around and I appreciated that because I need all the help I can get in these tough economic times right now read more

After being misled by 2 different smog shops I was losing faith my commuter would ever pass. They really went out of their way and took care of my needs, gave me solid advice and just got a loyal customer for life. Avoid the scammers and use the best around. Thank you for being honest with me. read more

A little rough around the edges, but super fast smog. They honored my $50 coupon from the mail; I don't know how much it costs normally at this location but $50 is a great price. The gentleman who completed the smog was very friendly and seemed genuinely pleased to do the service. It's in a weird spot off of E. D St but they happily took me at 5 p.m. on a Monday. I highly recommend this place! read more

I'd give it 5 stars, but it's a hassle getting in and out of the place. A couple of friends recommended I go here when it was smog and registration time so I gave it a go. The staff were friendly, responsive, and working on my car right away. Turn around time was quick and the price was a deal. I'll definitely be going back to Super Sonic again when I need my car smogged. read more

The owner is fine, but they have an employee who was working the register the day I brought my car in. He was *super* rude. Not a huge deal, so I shrugged it off and sat in the waiting area. But overhearing his interactions with literally every other customer who came in was pretty ridiculous. He had a nasty comment and/or bad attitude for every single person. He told me my Prius was bad for the environment because it contains batteries. Lol. That was my first and LAST time in there. I'll never go back just to avoid that guy. So many other places to go! read more

Yeah, that guy. Talks to oncoming traffic - either rolling on rubber wheels or pressing leather soles - as if you're actually listening to him... which you should do sometimes. So many people drive through life with perpetual road rage for where they find themselves (as David Byrne so eloquently posited decades ago, "Well, how did I get here?") that they miss what's really happening. Here's a humble, albeit rambling guy plugged into something, some soundtrack that keeps him upbeat holding a most unattractive turquoise colored outdoor advertisement for a business a mere two blocks away. Some days I wonder if he rehearses his blend of rap fusing Kurtis Blow and Tony Robbins, but it's gotta be freestyle, right? Right? Even when his boombox got jacked on the corner, he let out of choice words (unprintable) and carried on with his local show. He tells you it's going to be a great day even when you know the world's not really in a friendly mood. A few months back, when major and annoying railroad construction in full bloom at his intersection (Lakeville and E. Washington Streets), his employer paid for an LED sign for about a week. His reaction, "Oh no, y'all, I've been replaced by a machine." He returned the next week. Even Super Sonic realized that he's irreplaceable. read more

Randy knows his stuff!!! He also was very friendly and helpful, the value was also superlative, I was quoted $40 more at other stations for the same work. Front office guy has a great dry humor, would use the place again. read more

Smogged my BMW 325Ci on 1/5/12. Fast and easy. Owner was very knowledgeable.

Went in today to have my car smog checked for my DMV renewal. The owner, which is very nice, stayed late to get my car taken car of. He also honored my coupon, even though I forgot it at home. After chatting with him, I learned he's been doing smog checks for over twenty years and is obviously knowledgeable. He also gave me some solid recommendations on where I could get my vehicle worked on. Since I'm semi new to the area, it's nice to have a few option of where to take my car. He gave such great service that I came home and created a profile on Yelp so I could post here about him. He's got my smog check business from now on. Thanks for the review that lead me here Jes! read more

Mark, the guy at the front desk who'd have you think he's gruff, made me smile. Randy accommodated a special request. And my car was done quickly. read more

My usual guy was down for the count, something about his testing equipment borking. I searched yelp for nearby shops and went here because it was close. Boy am I glad I did. The guys were perfect, they weren't hand holders but I'm a guy, I don't need or want my hand held. The tech went the extra mile (and a half) and got me out of there with a smile on my face. While he took care of my old vehicle (a long time) he hooked up and tested four different new cars. They were each out of there in 16 minutes so...now you know. read more

I'm back for smog test. Randy is great. The guy at the counter tell me higher price. When I mention and show the picture of web site with lower price. He lowered the price. Good thing I took the picture read more

Its a smog test so I am not quite sure how to rate them. They got me in and out and the price was about the same as everywhere else (I am guessing it is pretty much set by the state). read more

Glad that I called before going! Called to asked for a quote for smog and was told it will be $60 out the door. Mentioned to the guy that I have a coupon from moneymailer.com for a $35 off smog inspection and was told the regular price was actually $95!!! and $60 is with the coupon. read more

This place was recommended to me by a friend, and I'm so grateful. I was smog testing a vehicle prior to its sale, and while I had to wait hours (I had a big, older vehicle - saw others go in and out much faster than I did) it was well worth it. Randy and his crew are selfless, caring individuals who personalize you're experience and really do the best they can to get you in and out smoothly with a pass. thanks! read more

Very fast service, only I paid $60. Only give 4 stars because the cashier or register was a little rude.

Wow! From my arrival to my departure was about 15 mins. No appointment. A quick smog check on my car and I was on my way. Get the coupon from the weekly mailer. $50 all in. read more

I have tried to give my business to this place because a family member recommended them. But they will tell you 15 to 20 min. Then put your vehicle in the bay right away .Then not touch it for a half hour. Twice I brought a coupon with me only to be charged more.( the first time I let it go)This last time I said I wanted the coupon price the guy said you didn't show me the coupon before I wrote it up then he pulled $10 out of his pocket and honored the price. I did show him the coupon both times up front. Total time there one hour twenty min. I would go elsewhere this place acts like you are bothering them when you patronize there business. In the end the smog tech who I think is the owner pulls up my car and says "bet you want to get home tonight". I will never go back. read more

Went in for Smog test today. I have never had such good service & help in my 84 years. I was in & out quickly , and forgot my registration notice. It was delivered to me, at home by the front office guy. It cannot get any better than that!!!! These guys are GREAT !!!! Patsy Tamborski read more

Amazing place!! Nicest smog techs too! I have been a customer of theirs for years and I always receive a smile and quick service. I was in and out of there within a 1/2 hour. Their new location is clean, bright and comfortable. They are honest and upfront about their charges and I would definitely recommend them read more

Super Sonic Smog - Best Little Smog Shop in Town! - Smog Check Stations Near Me - Petaluma, California

I was so pleased to print a $35 off coupon, which said No Appointment Needed and their hours were 8 am to 6 pm. I went at 8:45 on a Tuesday, no one was there. I sat in the parking lot and called both numbers listed on the coupon, both just rang and rang. I ran my other errands and went back at 9:45, doors were open but the nice man at the counter said they don't start doing smog checks until 10:15. He said the coupons were supposed to be changed to read 9 am, but even that would not have helped if they don't start until 10:15. I suggested they have an answering machine message with that information, he said "We tried that once, it didn't work." HUH?!? Needless to say, I left and won't be back. Perhaps the service is great if you stumble upon the right hours, but I don't trust this business at this point. read more

After three attempts to get a smog test done at 101 Express Smog I decided to look for an alternative. I looked on the internet and found this place. I like that they have been in Petaluma since 1983. I called and they were able to do a smog test right away. The test took about 20 minutes. They were friendly and got me on my way as quickly as possible. Exactly what I was looking for! I'm glad I found this place and we will be taking all our cars here from now on. Excellent service! Thanks so much! read more

Took Forever! Technician spent a long time with the visual inspection and couldn't even find the location of the ignition timing on the car. Finally hooked it up to the machine only to find out it didn't pass. While, yes, I am disappointed my vehicle did not pass, that is not the reason for the bad review. I waited almost 1.5 hours! And they claim they are fast? This is all they do...they are a "test only" station, yet were unfamiliar with the basics. The two workers on site did not move with any sense of urgency or appreciation of my time. Would never visit again....go somewhere else! read more

Randy was professional, knowledgeable and friendly. He had my smog check completed quickly and would recommend him to anyone.

Horrible customer service.. I had an appointment and wasn't even approached 45 minutes after the time of my appt.

Thi place was the worst did they did not tell us about the the program even after the 5th test and being asked. Also we would have never gone in the first place if we had known that it was the same owners as Jensen Automotive. The owners were shady when they had Jensen automotive and screwed us 3 ways to sunday DO NOT GO HERE!! They are not honest read more

I have been to Super Sonic three times. Each time Randy has done a good job of either doing the smog check or explaining what needed to be done to get my vehicle to pass. The stars say it all, this is as good as it gets. One tip for you, approach from Washington on Lakeville st. It makes things easier. read more

There was a price misunderstanding, but later I was called by the owner and it was resolved in a surprisingly pleasant manner. Petaluma is a nice place to me again. read more

Got a notice from DMV that I was delinquent on my registration so I needed a smog test asap. I called and they said no appt needed, first come first serve. I went over on my lunch break and they had me in and out in a half hour with a competitive price and great service! I'll definately be taking my car back in another 2 years when it comes due again :) read more

randy Jensen took care of it he had a fast answer for my smog issue sent me off to the muffler works with his referral got a good price on new catalytic then got me right in and completed the test i felt like this guy did a great job will count on him in the future read more

I went to Super Sonic Smog yesterday. As soon as I drove in I was met by Jim who invited me to take a seat either inside or outside the office while he performed the test. The test was performed quickly and my 17 year old car passed. As a previous reviewer also mentioned, Jim was super friendly and professional. Four years ago I paid $80 for my smog test, two years ago I paid $70 and yesterday I paid $55 (with a $40 off coupon). I was very pleased with the price and the service. I highly recommend Super Sonic Smog and will be using them again for my next smog test. read more

Don't go here unless you literally have all day. I was trying to get a smog check during my lunch hour and was told ahead of time that it would take about 20 minutes. I went and had lunch for 20 minutes, sat around the smog place for 20 minutes, asked the guy how much longer it would be and was told "20 minutes". Long story short, I had my car back EXACTLY 2 HOURS LATER! No apologies from anyone. That is completely unacceptable. I will never return here and will actively warn people not to bring their cars here. read more

a friend of mine highly recommended them so i took my car in for a smog, and it passed. it took a little longer than i expected, but i found out later from another buddy of mine that took his car there, that the smog technician dude ended up in the hospital with a serious brain tumor, which would explain RU Q's experience. i seen a sign that they're hiring, so there addressing any problems they have. i have always heard great things about the owner and he's been in the business since the 80's. i will be a return customer. read more