Alonso's Auto Repair
“He is very honest and tell you what is wrong with car.”
Best Coolant & Radiator Flush in Upland, CA
15 mechanics listed · 12 in Upland · 5 open weekends · 12 rated 4.5+ · 2 show a license
Data verified October 16, 2026
Al & Lee's Auto Care Center
“Lee is a great guy, extremely fair with his prices and, most importantly, very honest.”
Save On Auto Care
“Great service, professional, friendly, good price for services rendered, fast turnaround, great communication, even picked me up when my car was ready!”
Akbar Service
“It's very hard to have those kind of experiences in the “mechanic/car shop world”- they were very honest and transparent to what needed to be fixed.”
Roysautorepair IN Upland
“A special thanks to Mike, Roy and the team at Roy's Auto Repair for the best service.”
Aamco Transmissions & Total Car Care
“Even picked me up from home so I could get my car.”
Listed for drivers in and around Upland, CA, these 15 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: Upland, CA
12 of the 15 mechanics we list are based in Upland; the other 3 serve Upland from Claremont (4 mi), Rancho Cucamonga (5 mi) and Ontario (6 mi). The mechanics on this page are rated from 4.3 to 5.0 across 1,846 reviews; 10 have 50 or more reviews and 12 are rated 4.5 or higher. When customers rate these mechanics on specific qualities, they most often praise professionalism (81%), value (72%) and quality (63%). The topics that come up most in reviews of the mechanics on this page are "diagnosis", "fair" and "honest". 5 are open on Saturdays. 2 show a license on their websites; 3 list staff certifications (ASE) and 8 have a BBB rating of A or A+. Domain records put 8 websites of the mechanics on this page at ten or more years old; the oldest dates from 1997. 1 offers financing; 1 gives free estimates; 5 are family- or locally-owned and 3 list coupons or special offers. We have a website on file for 12 of the mechanics on this page; 8 publish a contact page; 6 list a public email and 4 take bookings online. 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.
Which shops listed for Upland discount a coolant flush?
3 of the 15 shops on this page list a coupon. A discounted flush is worth taking if the service is due and worth skipping if it is not, so check the interval in your manual first. Ask which coolant the offer includes, because the cheap one may not be yours.
Mikes Automotive & Tire
“We had a great conversation while I waited and I can see that he is an honest person who runs his business with integrity.”
VOW Automotive
“If you have commercial trucks or just a regular car this is a place to get it fixed”
Accurate Automotive
“I wanted to thank Mario and his team for doing such excellent work on my vehicles over the past 17 years.”
Kerber Automotive Repair & Services
“I am so grateful to have found this wonderful business.”
German and Japanese Auto Repair
“There service and pricing and Kindness was great will be back soon.”
Benri Motor
“Best mechanics I have ever been to and that's saying a lot.”
Reliable Smog Saint Anthony Complete Auto Care
“Friendly staff would definitely go there again to get my car smog”
Lupe's Auto
“Not even mechanics "recommended by AAA" couldn't find and believe that something was wrong with my Honda.”
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Connie & Dick's Auto Service Center Inc.
“Always courteous, super informative and they always finish work on a timely basis.”
Why these companies made our list
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