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Sudley Car Care Center
“I wanted to put in a good review for them today because they fit me in same-day to assess a warning light I hadn't seen before and had the problem identified and fixed before I was even done working.”
Best Coolant & Radiator Flush in Manassas, VA
24 mechanics listed · 6 in Manassas · 9 open weekends · 23 rated 4.5+
Data verified October 16, 2026
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Complete Auto Center
- Opinion
- Inspection
- Estimate
“I called Complete Auto Center with very little hope left on the plan for my vehicle but relieved to find the answers I needed from a smart and kind person.”
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Logan's Import Service Emporium
- Mechanic
- Diagnosis
- Trip
“Took my 2009 XK Jaguar there for a squeaking nose and they replaced the alternator and tensioner with new belt and new rear brakes and rotors … The job was excellent…”
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VA Auto Care
“Alex and his team are a true blessing 🙏 🙌 I am so happy 😊 that I found a shop that I can truly depend on and trust on to have my kia rio working safely on the road thank so much Alex …”
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Mars Automotive Group
- Diagnosis
- BMW
- Prices
“Despite my 2009 Rabbit not being the usual caliber of vehicle that they address, all of the staff, and in particular Victor, were gracious, considerate, and thoroughly engaged in providing the very best service.”
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We Care Auto
“If you're looking for a great mechanic business to take care of you and your vehicle them We Care Auto matches the name because the really care about you and your auto!”
Listed for drivers in and around Manassas, VA, 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: Manassas, VA
6 of the 24 mechanics we list are based in Manassas; the other 18 serve Manassas from towns including Chantilly (10 mi), Fairfax (12 mi) and Manassas Park (3 mi). The mechanics on this page are rated from 3.9 to 5.0 across 9,285 reviews; 21 have 50 or more reviews and 23 are rated 4.5 or higher. When customers rate these mechanics on specific qualities, they most often praise professionalism (92%), quality (82%) and punctuality (72%). The topics that come up most in reviews of the mechanics on this page are "honest", "diagnosis" and "price". 9 are open on Saturdays and 1 on Sundays. The services the mechanics on this page list most often on their websites are air conditioning (2), inspections (2), oil change (2), scheduled maintenance (2) and tires (2). 9 list staff certifications (ASE) and 7 have a BBB rating of A or A+. Domain records put 16 websites of the mechanics on this page at ten or more years old; the oldest dates from 1998. 3 offer financing; 5 give free estimates; 9 are family- or locally-owned and 14 list coupons or special offers. 2 have Spanish-speaking staff. 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 Manassas?
Online booking is offered by 16 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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Complete Diesel
- 2005
- Vehicle
- Diagnostic
“Stayed down a little longer than I thought because of problems with the delivery on parts, but these guys were great, looked out for me the whole time I was here.”
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Promise Auto Repair
- Price
- Warranty
“The best place”
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Fairfax Auto Repair
- 2005
- Towed
- Estimate
“They were quick, honest, and forthcoming about the challenge we were facing, and helped us come up with a plan to get the problem resolved in the most inexpensive way possible.”
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South Lakes Sunoco
- Call
- Job
- Bulb
“I appreciated them taking time to check my tire for a slow leak and not charging me when all that was needed was simply resetting the car's computer.”
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Hometowne Auto Repair and Tire
“It was great to be back at Hometowne where the service is great and friendly, and the service is based on need and what is reasonable to keep my car in great shape.”
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Stone Springs Auto Center
“I recently had the pleasure of visiting Stone Springs Auto Center for both an oil change and to purchase a new set of tires for my Audi, and I must say, the experience exceeded all expectations!”
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Porsche Chantilly Service and Parts
- Cost
- Inspection
- Tiara
“Everyone was very courteous and professional especially my service advisor, Ronald, who was very helpful and detailed in explaining the necessary items needed for my car.”
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Cardinal Plaza Shell
- Concierge
- State
- Upsell
“The workplace culture here appears very happy and everyone I've interacted with was very kind and patient, often going out of their way to help me get back on the road.”
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GT Peace Automotive
“I have no doubt that they are every bit as professional and expert with whatever make of car you may have and I will DEFINITELY be taking my Jeep there for any service it needs.”
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Rosslyn Automotive
“I came here first to get a second opinion on a quote from an 'authorized dealer' who tried to recommend that I change a part that was changed just months ago.”
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Quantico Tire & Auto Care
“Even when they had a small line at the front desk, a manager came out and apologized for the wait and explained an accident caused a delay with some folks getting to work.”
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High-Tech Auto and Truck Center
- Ram 1500
- Tacoma
- Responsive
“They are also very efficient here, letting you know which day their team expects to complete major milestones and finishing in my case a little ahead of schedule.”
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Casey's Automotive
“Over these years I have gotten to know many of the employees working there and they love what they do and this leads to doing the best they can do for all customers.”
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ABS Unlimited Auto Repair
- Timing Belt
- Oil
- Quality Service
“No high pressure at ABS and they give you a very thorough assessment of your car's condition when you take it in, so you can decide if you want additional work at that time or can put it off until later.”
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G&C Tire and Auto Service
“We recently brought our sons newly purchased used vehicle to Steven at G&C for a thorough inspection to check for things that could possibly be wrong with it that we are not qualified to notice.”
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Dulles South Chantilly Automotive
- Car Service
- Dealership
- Oil
“Thankfully Dulles South Chantilly Auto was close and Willy was there to make good on his assurance that the job could be done within the time he stated.”
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My Dads Automotive Service & Repair For Acura
- Reviews
- Honest
- Owner
“Brian and Jerry both spent time with me discussing some maintenance issues with my vehicle that were on the horizon based on their assessment of my car.”
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Prime Automotive
- Dealership
- Job
- Warranty
“I have taken my car here several times and have been impressed with their level of thoroughness when diagnosing my car, their honesty, and customer service.”
Radiator Coolant Fluid Exchange Services in Manassas, VA Cost Estimates
Minimum cost
$60
Maximum cost
$230
National Average
$95
$100
$150
Average price range is based on 283 cost profiles
Why these companies made our list
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