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Genie Auto Center
- Engine
- Check
- Car Wash
“They're good people they're honest people people and the car work gets done very quick very quick love this place love this place won't take my car anywhere else”
Best Coolant & Radiator Flush in El Cajon, CA
24 mechanics listed · 16 in El Cajon · 7 open weekends · all 24 rated 4.5+
Data verified October 16, 2026
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Kirk's Radiator
- Leak
- Job
- Quality
“They are friendly, hard-working and do not charge a lot, their waiting room is very comfortable, they are bilingual, I think they are the best and honest.”
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Allman Family Auto
- Team
- Fair
- Vehicle
“He was straight forward about everything, no haggling, no trying to sell me other things i dont need, and the work he does on his vehicles is top notch.”
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Rancho Auto Service
- Truck
- Waiting Area
- Oil
“I recently visited Rancho Auto Service for an oil change, brake fluid replacement, and spark plug change, and I couldn't be happier with the service I received.”
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Trust Auto Repair/Smogs
- Honest
- Inspection
- Brakes
“I had a great experience with Trust Auto Repair, The employees were very professional and transparent with me about my vehicle and the repairs that needed to be done.”
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Rob's Automotive
- Smog
- Inspected
- Work
“Took my car in to be inspected before a long trip and Rob was honest and said my 2014 Jeep Grand Cherokee was in great condition and only brake fluid needed to be changed.”
Listed for drivers in and around El Cajon, 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: El Cajon, CA
16 of the 24 mechanics we list are based in El Cajon; the other 8 serve El Cajon from San Diego (10 mi) and La Mesa (4 mi). The mechanics on this page are rated from 4.5 to 5.0 across 3,315 reviews; 19 have 50 or more reviews. When customers rate these mechanics on specific qualities, they most often praise professionalism (91%), quality (81%) and value (74%). The topics that come up most in reviews of the mechanics on this page are "fair", "diagnosis" and "honest". 7 are open on Saturdays and 1 on Sundays. The services the mechanics on this page list most often on their websites are air conditioning services (2), brakes (2), cooling system service (2) and tire services (2). 5 list staff certifications (ASE) and 11 have a BBB rating of A or A+. 20 have ten or more years of experience, the longest 77 years. 6 offer financing; 3 give free estimates; 7 are family- or locally-owned and 9 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 El Cajon?
Online booking is offered by 11 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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Euro Auto Tech & Smog
- Oil
- Communicate
- Job
“I would highly recommend Euro Auto Tech to anyone who's out there trying to find an honest mechanic shop and I'll bet you will be satisfied with the work and price.”
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Driven SD Independent BMW Service
- Oil
- Pricing
- Honest
“Also, I forgot to bring my Blackstone Labs oil container and they were nice enough to take a sample and store it in another container, so I didn't have to run all the way home.”
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Caliber Auto Repair
- Mechanic
- Job
- Honest
“They went above and beyond with a few tasks that were definitely not in the job description, and they helped me with them just because they're nice people.”
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Sunshine Auto Repair
- Job
- Work
- Diagnostic
“I have brought my car on more than one occasion, Sam is very knowledgeable takes his time to speak with the customers, He has always explained everything in details even before working on your vehicle.”
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Diesel Doctor
- Job
- Vehicle
- Prices
“I was really nervous to take it to a random mechanic because of how important the truck is to me and also becauseim planning on using to haul a camping trailer with my family, so i needed it reliable.”
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ATG Auto Repair & Mechanic Shop
- Towed
- Communication
- Diagnosis
“Got my whining rack and pinion steering fixed plus other issues found in diagnostic, and happily it cost less than expected and done in a couple of hours.”
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Eskimo Radiator & Air Conditioning Repair
“They immediately helped me, called me within two hours with an estimate MUCH lower than I had expected, and my car was fixed and back to normal only a few hours after that.”
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Aamco Transmissions & Total Car Care
- Fair
- Communication
- Team
“Even though most of what they gave me was bad news, they worked as hard as possible to get my car back with a deadline and I felt like I knew everything I wanted to know at every step of the way!”
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Greg's Automotive
- Truck
- Fair
- Diagnosis
“Mark was very helpful and was able to diagnose, fix, and get the truck back up and running code free the same day - within about $25 of the rough estimate”
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Legacy Auto Care & Tires
- Mechanic
- Job
- Oil
“Anthony took care of everything, I was in need of new brakes and an oil change , and they gave me an excellent deal, the best price I got quoted in town, and they did an amazing job!”
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Bond's Automotive & Collision
“Leaving work early to pick up son to go to his baseball tournament in Phoenix, his first out of state tournament, he's been geeked up about this for a month.”
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Riley Automotive
“After bringing my car to pb foreign and having them break a bolt and not take responsibility, I'll gladly drive the extra 30 minutes to go here everytime now.”
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San Diego Pacific Crest Services
- Company
- Motorhome
- Price
“We ended up getting our coach started before the tech arrived (actually before he had started our way) but giving a review on their attentiveness and detail.”
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Steve's Mobile Repair
- Sunday
- Price
- Vehicle
“I was very satisfied his experience was accurate and decisive I would use Steve with all my car problems he's a great mechanic thank you for your help Steve”
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Pilcher's Quality Auto Repair
“Excellent in all areas.”
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Miramar Automotive & Transmission
- Mechanic
- Report
- Oil
“I was never forced to buy anything and the best part is that they send you pictures of every issue with a brief explanation to help you understand what is going on.”
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Allied Gardens Automotive Inc
- Team
- Job
- Smog
“I was afraid I'd be dealing with a rental for multiple days over the weekend anywhere I went but they worked so fast I didn't have to stress about that.”
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Japanese Car Masters
- Quality
- Engine
- Vehicle
“They did not fix anything extra to add on the invoice, rather they provided me with great information on the other issues i want to pay attention to, which was great for me.”
Radiator Coolant Fluid Exchange Services in El Cajon, CA Cost Estimates
Minimum cost
$70
Maximum cost
$269
National Average
$111
$117
$175
Typical price range is based on 387 cost profiles
Why these companies made our list
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