I've had some really awful experiences with mechanics since I moved to the area 18 months ago…read more I've tried Dobbin Auto Repair, an Exxon in Columbia, AAA in Laurel, and two dealerships -- all of which were the worst experiences I've ever had with mechanics. River Hill Sunoco got my car running better than it has in over a year, and I finally feel safe on the road again. They treated me with respect and patiently listened to the list of issues I was experiencing. They quickly diagnosed the issue, fully explained it to me, and completed the repair within a couple of hours. I can't say enough about how great my experience was!

In spite of the pecuniary wealth of Clarksville, the area is generally destitute when it comes to…read moreautomotive knowledge. The River Hill Sunoco preys on this ignorance. Late one night, my girlfriend got a flat tire. As I have done dozens, if not hundreds, of times in my life, I removed the old wheel/tire and put on the spare using nothing more than a scissors jack and lug wrench. As I replaced the lug nuts, I threaded them and tightened by hand before using the lug wrench for one last fastening. As it turned out, there was a hole in the sidewall of the old tire, so Sunoco ordered a new tire that was expected to arrive in a few days. In order for us to commute to Baltimore on the spare, "John" the technician tightened up the lug nuts. "John" did so with an air impact wrench (also known as an air hammer, pneumatic impact wrench, etc). A few days later, we took the car back for Sunoco to install the new tire. This time, the Sunoco technician had difficulty removing one of the lug nuts, and one of the studs snapped. After replacing the tire, Sunoco capped the broken stud and offered to replace it at a cost of approximately $100. Through an apparent miscommunication, Sunoco never ordered the new stud, so we took the car elsewhere for repair. At the other garage, my mechanic had to use a breaker bar to remove two of the lug nuts because Sunoco had over-tightened them (see attached photo showing metal shavings from the other over-tightened lug nuts next to the broken stud). Due to the numerous damaged studs, we replaced the entire wheel hub assembly. Naturally, this cost more and caused major inconvenience as the car could not be driven for several days. An objective analysis of the facts leads inescapably to the conclusion that Sunoco over-tightened the lug nuts, causing the catastrophic failure (breaking) of one stud and the effective destruction of two others. When the first stud snapped, Sunoco did not mention any issue with any of the other lugs or studs. The vehicle was entirely within the control of Sunoco, and it was Sunoco that once again tightened the lugs after they replaced the tire. The thing speaks for itself: only Sunoco could have caused the damage to the second and third studs, and the circumstances strongly suggest Sunoco's fault for the first. Through its manager, Adam, Sunoco has enumerated several excuses to absolve itself. First, Sunoco alleged that I "cross-threaded" the lug nuts when I put on the spare. I reiterate that I hand-tightened the lug nuts, and this excuse does not account for the destruction of the second and third studs, which happened after Sunoco replaced the tire. When confronted with the issue of the additional lug nuts' destruction, Sunoco then blamed me for not making the lug nuts tight enough after the tire change and alleged the wheel was "like a loose tooth" when it arrived at Sunoco (which, of course, undercuts its "cross-threaded" theory). Admittedly, I did not have a torque wrench, but to think the lug nuts had come loose on the short drive to Sunoco strains credulity. If it were true, why then did Sunoco not note damage to the other studs at that point? Oddly, Adam denied knowledge of any technician named "John" employed at Sunoco, though he admitted a technician with a similar sounding name does work there (other social media posts about the River Hill Sunoco, e.g. Anglie's List, mention an employee named "John."). Just so there is no confusion, "John" is the technician who has family in the south of France, though I'm sure Adam knew exactly who I was referencing.

Restrooms out of order. The Out Of Order sign appears to be very old. The gentleman said they have…read moreno restrooms available.

Rip Off Gas Our US!…read more I'm at a loss why people pay so much more than the norm at places like this. You'd think they have a free dinner gift card with every fill up.

For years my family trusted this shop, but they did work that was wrong, over charged us and…read morecompleted work irrelevant to the issue on the car.

To the owners and customers of this Harper's choice BP, I can't tell you the AMAZING customer…read moreservice and service I received from the body shop at this station! Jimmy was outstanding and I felt like he cared about my car and me! What a treasure to have someone that trustworthy and honest working on my Lexus LS 460 automobile!!!

Closed early and shut off pumps and lights even though I was at the pump. Sucks this is the closest…read moreplace to redeem Giant points.

This is the WORST gas station I have ever been to. EVERY. SINGLE. TIME. That I go there there is an…read moreissue. It cannot accept my Giant Bonus points most of the time which is astounding since every other Shell can. But today took the cake - I tried multiple pumps and I couldn't get gas!!! Took my credit card, I selected my grade and put the pump in and the screen pops up with "thank you!" And I get a $0 receipt. On multiple pumps. It was amazing. I have never seen anything like it. Never go here if you NEED gas. I barely made it to another gas station - had 2 miles left according to my truck. Oh - and the next gas station had pumps that actually worked. Don't waste your time here.

They are so helpful. When I go to get my car washed I stop by there to get my air tire pressure…read morechecked and they don't charge but because of their service I always give them $10.

New to the area and wanted to check out this car wash. I got the #1 wash. Between my seats, cup…read moreholder and back seats weren't even wiped down or cleaned. Very disappointed.

It's a gas station. Self-service. Easy to find right along Sykesville Road. I don't find the gas…read moreprices here to be too high; on the contrary, they're in line with, or slightly lower, than others in the area. In and out, I stop by here every time I pass by.

Apart from the gas station, there was a convenience store, a liquor store, and a deli and bakery…read moreall on the same grounds. The prices are steeper than the other gas stations nearby, but I was unfamiliar with the area and thus unaware of the Royal Farms just up the road. It's a little awkward of a turn to make to get into this gas station, signage isn't that clear, and it's a bit of a busy one so watch where you're going!

My back right tire was grinding/scraping so badly that I was clenching my teeth every time I drove,…read moreknowing it meant something awful and expensive that I just kept delaying since I didn't have a trusted mechanic. I saw some good reviews for this location, so I drove by on a Saturday right before they closed and chatted with the owner, Brian. He hopped in the car and drove 1 yard, immediately told me what he thought it was, and warned me to avoid driving the rest of the weekend as grinding the wheel in extreme heat was risky. He said to come back first thing Monday morning to get it lifted up and properly examined. Came back Monday and the team figured out I needed to replace the caliper and brakes. Price was fair and they said they could do it same day within 3 hours, so I let them work on it and had them do an oil change as well. I'm very grateful for Brian and his team, taking the time to explain what was actually needed and why, and not overselling me on additional services. I'm so glad I finally found a new trusted mechanic! Will definitely take my car to Brian and the team for all future maintenance services.

I'm so thankful I came across four corner auto care to fix my car…read more Brian (Tenzin) promptly responded to my request to fix my car which I hit against cement in a parking garage (after dodging an old lady walking down a dark ramp...everyone was okay). Brian estimated that he could have my car fixed within a few days. The whole job took one week because he found other significant damage in the interior of my car which I didn't know about. Overall he communicated well, asked if I wanted to fix everything and had such a positive attitude. Also they do excellent work for a reasonable price. I almost wanted to keep this gem to myself but the world (or Silver Spring) needs to know where to go for superior auto care whether mechanical or auto body. They also cleaned the interior of my car. I don't want to come back for anything other than oil changes but if I need a job done in the future, I know where to go. I think the pictures speak for themselves to demonstrate high quality service.

Folks, there is a pump malfunctioning. Gas sprayed out all over me and the car in which my child…read morewas sitting with an open window yesterday. As of this morning there is nothing to prevent customers from using that pump, despite the fact that the Manager was informed and the FD called. Please be careful if you intend to patronize this business.

The bathrooms are nice and clean, and you must obtain the key first, before you can use it. The gas…read moreprices are really outrageous, averaging about 40 cents more per gallon than other places within a five mile radius.