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Continental Motor Works
“Can always fit me in and always do an amazing job!”
Best Coolant & Radiator Flush in San Luis Obispo, CA
24 mechanics listed · 8 in San Luis Obispo · 6 open weekends · 20 rated 4.5+ · 1 shows a license
Data verified October 16, 2026
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Wrona's Quality Auto Repair
- Honest
- Work
- Vehicle
“Showed up with no appointment for a smog they took me in they were polite and professional and courteous I was in and out in less than 30 minutes highly recommend them.”
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Scott's Shop LLC
- Prices
- Smog
- Mechanic
“Of course it's always a bummer to have to get work done on your car, but it's so reassuring to have it done by people who are communicative, friendly/funny, and trustworthy.”
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Absolute Auto Tech
“We all take our cars to a mechanic because we don't know what we're doing, so it's refreshing to get an honest answer, and have that proven by them going out of their way to not sell a service.”
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Rizzoli's Automotive
- Drive
- Brakes
- Inspection
“They were able to smog my 3500 sprinter van, the same day, they were courteous, efficient, and the cost of repair was lower than any other shop in San Luis Obispo.”
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Complete Automotive
- Truck
- Estimate
- Vehicle
“Instead of simply installing a new expensive alternator like some shops may have done, John spent the time to double check the diagnosis and confirmed the alternator was fine.”
Listed for drivers in and around San Luis Obispo, CA, these 24 shops list coolant flushes and antifreeze service. What each one says about the coolant types it stocks, machine flushes and warranties comes from its own website; ratings and quotes come from public reviews.
Area overview: San Luis Obispo, CA
8 of the 24 mechanics we list are based in San Luis Obispo; the other 16 serve San Luis Obispo from towns including Paso Robles (24 mi), Atascadero (14 mi) and Santa Maria (26 mi). The mechanics on this page are rated from 4.3 to 5.0 across 4,797 reviews; 21 have 50 or more reviews and 20 are rated 4.5 or higher. When customers rate these mechanics on specific qualities, they most often praise professionalism (95%), quality (79%) and punctuality (74%). 6 are open on Saturdays and 2 on Sundays. The services the mechanics on this page list most often on their websites are oil changes (4), auto repair (3), brake repair (3), air conditioning service (2) and computer diagnostics (2). 1 shows a license on its website; 7 list staff certifications (ASE and TIA) and 4 have a BBB rating of A or A+. 22 have ten or more years of experience, the longest 50 years. 3 offer financing; 2 give free estimates; 3 are family- or locally-owned and 13 list coupons or special offers. We count these figures across the mechanics on this page; distances are straight-line, and hours and prices change, so confirm the details with the mechanic before you visit.
Can I book a coolant change online with shops listed for San Luis Obispo?
Online booking is offered by 9 of the 24 shops. Put your engine and the coolant specification in the notes when you book, since the shop needs the right fluid on the shelf before you arrive rather than a universal jug under the counter.
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Morin Brothers Automotive
- Fair
- Prius
- Smog
“When we decided we wanted to replace it ourselves, she told us the parts store that had it in stock, and had her mechanic coach us on what to look out for.”
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Villa Automotive & Autobody
- Diagnostic
- Tow Truck
- Smog
“Ron got that Napa delivery there with the part I needed in 20 minutes, and Josh was drinking his monster and running codes/installing parts like a boss.”
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Perry's Automotive
- Vehicle
- Prices
- Mechanic
“Diego greeted me first thing in the morning, looked at the problem with the malfunctioning window, took my information and told me he'd get back to me shortly with a quote and part availability.”
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American West Tire & Auto
“Integrity: Three days before my appointment, I had all four tires on my car replaced because the inside tread on all four of them had drastic uneven wear (shame on me for not rotating them enough), I had 45,000 miles on them, and my car pulled to th...”
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Jeff's Auto Works
- Honest
- Smog
- Priced
“This is the first time I had brought two cars into Jeff's Auto Works on the same day, on a Friday, and when it got towards the end of the day I thought there might be issues.”
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A's the Other Guys Garage
- Diagnosed
- Town
- Prices
“I had been searching for a mechanic (for what felt like my whole life) that didn't treat me like an idiot and try and charge me 10x what it actually costs, and I'm so glad I found that in Abe!”
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Camarena's Tires & More
“They are great and also a very busy shop so don't expect there to be someone just sitting at the counter waiting to hold your hand while you figure out what you want (just another salary to pay that gets put into your bill.”
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Paso Robles Auto Repair
- Diagnosed
- Driving
- Oil
“I showed up to Paso Robles Auto Repair that following Tuesday morning and Erick and his team were more than happy to take on the work and found out my water pump was going out, they got me up and going the following day and even changed my oil for me...”
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Allegiance Automotive
- Job
- Auto Repair
- Prices
“These guys are really knowledgeable and thorough, they repaired a bad alternator in less than 2 hours while I was enjoying beer at Barrelhouse Brewery less than 5 minutes away by walk.”
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Econo Lube N' Tune & Brakes
- Mechanic
- Price
- Check
“Didnt run any unnecessary services and saw them contact some customers before doing work to warn them to get something fixed before running the smog so it didnt come up as an auto failure.”
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Matt's Smog & Car Care
“I had them perform a safety check on my car and they did an excellent job, finding and showing me hard to see minor leaks and tiny stress fractures in my bumper.”
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Lube-n-go
- Truck
- Coolant
- Price
“Yesterday, he was backed up towards the end of the day and wasn't sure if he could get me in for an oil change, but said that if I would be the 1st one in the next morning, he could get me in-and-out in 20 minutes and would give me a discount.”
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Auto Limits Auto Repair
- Prices
“Just to start off I was offered extremely uncommon customer service and when I say that I mean it was outstanding, there isn't to many shops anymore like those.”
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Olivera's Express Lube
“The driver diagnosed our problem, even had the right battery with him, and installed it.”
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101 Auto Shop
- Truck
“Luckily, I was able to coast into 101 Auto, even though they just closed, they stayed late and diagnosed the problem, ordered parts and got the car fixed the next morning (even though it was 4th of July weekend) so I could continue my vacation.”
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Kiwi's Auto Repair
- Job
- Check
- Mechanic
“More recently, I have had multiple mechanical issues that resulted in many phone calls and back & forth, and Bob has been kind, helpful, and patient with my questions and concerns.”
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Eric Krebs Automotive
- Inspection
- Team
- Price
“It was my first time here and Eric was very kind and explained to me in detail what would occur, when it was occurring, and provided a detailed list of my car's potential needs.”
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HP Autosport
- Knowledge
- Job
- BMW
“I've been ripped off in the past by other repair shops who recommend unnecessary services to pad their pocket, but I can always count on Harold to tell me exactly what needs to be fixed.”
Radiator Coolant Fluid Exchange Services in San Luis Obispo, CA Cost Estimates
Minimum cost
$61
Maximum cost
$232
National Average
$96
$101
$152
Fair price range is based on 261 cost profiles
Why these companies made our list
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