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    Diamond Sunoco

    4.9 (11 reviews)
    Closed 8:00 am - 5:00 pm
    Updated 3 weeks ago

    Services - Diamond Sunoco

    Auto maintenance

    Auto fluids and filters maintenance

    Auto repairs

    3 More Services

    Auto transmission repair

    Routine automotive maintenance

    Transmission leak inspection

    Diamond Sunoco Photos

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    Recommended Reviews - Diamond Sunoco

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    4 years ago

    These guys are great. I never post reviews online, but these guys are worth it. I've never felt like they misdiagnosed or over charged.

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    6 years ago

    Business owner information

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    Gary D.

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    7 years ago

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    6 years ago

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    12 years ago

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    7 years ago

    Quality and Efficient service. They don't oversell you on repairs. Trustworthy. Friendly!

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    12 years ago

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    12 years ago

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    10 years ago

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    12 years ago

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    12 years ago

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    Review Highlights - Diamond Sunoco

    Provide a courteous service, a diamond of a waiting room, and a ride home and back.

    Mentioned in 2 reviews

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    AutoStream Car Care Center

    AutoStream Car Care Center

    (15 reviews)

    I have a 2014 Audi A7 Quattro Prestige that had a light replacement warning pop up. This car is a…read morelot more complicated than I had anticipated and Rick and his team were not only kind but unpretentious, transparent, and very respectful of my time and money. Anyone who's dealt with dealerships will appreciate not getting the runaround. My warranty has expired and it seems that any service I may have needed under warranty has now multiplied tenfold (whodathunkit?!). I've lived in the Hunt Valley/ Reisterstown area for almost 25 years and driven past this location countless times. I should've stopped in a long time ago; so glad I did and look forward to giving them more of our business. Support small businesses!! This is definitely one of those diamonds in the rough :-)

    The bitch dog is what I was called after trying to get my car inspected. My niece took a car to…read moreget inspected and it one had to replace one brake light windshield wiper blades and brakes. No big deal like, we fixed it. I drove one hour to this place to get the certificate. First they tried to tell me they have to look at it again so they would have to charge me for another inspection. I guess because I was a woman I voiced my opinion about that. I was told don't worry I will take care of it by the front desk receptionist. Like he was doing me a favor. On the original certificate, it said white for the bulb when I took it back they then explained it was a chip of on the bulb as I'm sitting in the waiting room for another hour while they're back in the bay laughing and joking. I wish I could give a negative rating. love The bitch with the dog.

    Reliable Auto Care - Road trip ready after a quick check up.

    Reliable Auto Care

    (25 reviews)

    On time. Reasonable prices. Communicate well. Easy to locate. Would recommend to others.read more

    I went to Reliable for 6 years - and was always happy until my past couple of visits. They kept my…read morecar for FOUR HOURS for an oil change and did not tell me that a tech had been injured, causing the delay. when I called at hour 2. If you would've told me that someone was hurt, I would've taken it back the next day. But that option was not provided and then I was made to feel bad about it when I complained that the appointment took so long. They also misdiagnosed a problem with vibration in my vehicle. I ended up replacing the front struts, which probably would've needed it down the road, but it was not urgent or the cause of my problem. They also quoted over $500 more than any local shops for the struts. They were even more expensive than mitis! And they wanted a down payment as a deposit for the work. I've never seen this before. Not just here but anywhere! The kicker is that it was not the struts at all, instead there was a driveshaft problem that they should've seen because I asked them to look at the alignment, steering, and rear differential. They also missed the fact that a rear strut was leaking during that same check (which should've been obvious if they were actually checking the rear differential fluid). When I called to ask why the service was so inconsistent with the actual issue, and to see if they would issue me a refund based on the extra work I had done because of them, I was hung up on. I'm not sure what's going on with the manager but she used to be a very nice person. Not lately. Don't get me wrong, are used to rave about this place. I even took down a five star review in which I joked that I hope they did not get too popular because I liked getting good appointment times. I wish this place was good. They were good for a long time. Not anymore. Watch yourself. Who asks for a deposit especially from a long term customer - over six years I've been going there and always trusted their suggestions and prices. Maybe COVID has affected the way they do business.

    NTB-National Tire & Battery - Empty area. Noone for.awhile

    NTB-National Tire & Battery

    (95 reviews)

    Ive come to this location as customer service use to be great…read more The last few visits has gone down. This particular visit I came for a tire check to see if there was a nail in one of the tires as it went down in tire pressurw prompting service light. I waited inside for a nice while before a female came from the back, and asked how could she help. I informed her that I not long got the tires from this location and told her that I needed someone to check the back tire for a nail. She said its going to be about 45 minutes. I just needed it to be visually looked at. She did not bother to look so I could gauge a time to get it fixed. I had to leave and go somewhere else to have it checked. For the price of service and tires, customer service here doesnt add up to the value.

    Stay Away from NTB Auto in Owings Mills, MD -- Dishonest and Unprofessional Experience…read more I went to NTB Auto in Owings Mills on November 2nd at 3 PM to have my car battery replaced, thinking it would be a quick and simple process. Instead, I left deeply concerned that other customers may be getting taken advantage of. From the moment I arrived, I received no greeting, no free battery check, and no basic courtesy. The employee simply asked for my car's make, model, and year, then quoted me $360 to replace the battery. When I said that price was ridiculous and that I'd be leaving, he told me that included "the battery and their time to install it" -- then asked me what I was willing to pay and said we could work something out. That comment alone raised major red flags. Pricing should be standardized, not negotiated like a flea market. I declined and asked why the prices were not already set. He asked me again "what are you willing to pay?" After that, I left, having to jump my own car in their parking lot with no help offered. I called NTB's customer service line and spoke to a kind, professional woman who indicated that it was a concern who said a district manager would reach out. When he did, rather than listening or investigating, he defended the store's behavior and claimed they were "just trying to find me the best deal." That explanation only made things worse. I requested a follow-up but never received one. For comparison, I went to Walmart immediately after and paid around $125 for a new battery with free installation. There is something very wrong with how this location operates. I strongly recommend avoiding NTB Owings Mills altogether. Transparency, integrity, and basic customer service are sorely lacking.

    Hollenshade's Auto Service

    Hollenshade's Auto Service

    (103 reviews)

    I have been a customer of Hollenshade's for many years and I have always received excellent…read moreservice. Staff is friendly, knowledgeable and professional when interacting with them and they make sure you understand exactly what needs to be addressed with your vehicle. Plus, their waiting area is cozy and comfortable.

    Hollenshade's, what happened? I've been a solid customer for 20+ years, I take good care of my…read morecars, and I've always trusted your shop to do honest work. Like everybody, I waited patiently in your thimble-sized office, navigated your comically undersized lot, and quietly appreciated the humor of your staff through the years. Thank you for that. So why today was I met by two new faces at the service desk with such a strikingly different attitude? I was surprised to hear oil changes require advance appointments, and you now prefer online. I mean, sure, I can do that. But when did that change? And why was a technician I've never seen before so condescending about it? He was downright hostile. Then the other guy chimed in and accused me of interrupting him. Honestly, gentlemen, I asked myself, "Is it worth it to schedule an appointment with you, if I know it's going to be you calling me to tell me any additional work that may need to be done? Do I trust the two of you?" The answer in that split-second moment was no. The arrogance, sarcasm, and belittling behavior by this pair made me realize I wouldn't trust these two to be the communicators of my mechanic shop. When I asked where the two old guys went, Kyle said with a smirk, "They went where all old guys go." Um, did they die? No, they retired, thankfully. Old guys from the desk, you are missed by your customers! Maybe it's the same great mechanics working behind closed bay doors at Hollenshade's, I don't know. Two guys I've never seen before told me things about how the business works that I've never heard before and treated me in a way no one at Hollenshades ever treated me before. Which leads me to the conclusion that this is not the same Hollenshade's I've trusted for over 20 years. I'm genuinely disappointed that I need to find a new mechanic. I honestly don't know what's happening at Hollenshade's anymore.

    Griffin Service Center - Sign on the back of the business building.

    Griffin Service Center

    (5 reviews)

    My vehicle threw a check‑engine light for low oil pressure, so I took it to a shop I trust. They…read morebelieve the issue is just a bad oil filter, so they replaced it for only $9 including parts and labor. They told me that if the light comes back, the next step would be to replace the oil pressure switch, which costs about $350 because it sits under the manifold and takes time to reach. I appreciated that they didn't jump straight to the expensive repair. They tried the simple, inexpensive fix first and only suggested moving to the costly option if it becomes necessary. It felt honest and fair--more like, "Let's try the easy solution first, and if that doesn't work, we'll tackle the bigger job without breaking the bank.

    I dropped my car off on Monday night on Tuesday afternoon, I received a call from Matt saying that…read morethe oxygen sensor maybe bad,he asked if he had permission to order the part,I told him yes,he then said that he would call me back ,which he never did.I called him back he stated oh I forgot to give you a call he then said that he would order the part and my vehicle should be ready late Wednesday or early Thursday morning. I arrive at the shop Thursday morning at 1045 because again no communication once there I was told that they could not find a work order ticket or my keys,and was told that I didn't give them permission to order the part so nothing was done.2 days wasted in the shop.they finally found my keys,I got them and left.bad customer service, bad vibe. I don't know if they treat all of their customers like that or just those of color that's the vibe that I am referring to.Sad!!!!!

    Diamond Sunoco - autorepair - Updated May 2026

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