Rusty Nuts Diesel and Lube llc MD 21783

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Shawn Quinn

I bought my first diesel in 2012, when I needed work I was recommended to see John. I now live 45 miles away but I always make the trip when needed. I trust only him when it comes to my truck. Very knowledgeable, does not play guessing games. Seems like he always knows what’s wrong just by the info I tell him.

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Jerrold Pearson

I have been bringing my vehicles to Rusty Nuts Diesel & Lube for several years now, and so the first words that come to mind regarding their work is, "consistent quality." I am one to rely on reviews, as well as to write reviews when a business is deserving. That said, this place gets really good reviews, and they deserve it. Here's why... On my most recent need of their services, my car's alternator was faulty, which I knew ahead of time. To get it there, a tow was involved, and so, to get the car on the tow truck, the driver attempted to hook a power pack to the battery terminals to be able to drive the car on the flat-bed. But most certainly based on the outcome, the driver connected the cables to the opposite terminals (positive to negative), and thus, several fuses were instantly blown. The replacement of the alternator would have been a one-day, in-and-out operation. But, one of the blown fuses on my car was a specialty part, made by the car manufacturer: thus, delays. I took the car in on Monday, 12/29/25, and after diagnostics, the fuse was ordered. They were told and related to me that due to it being a holiday week (New Years Day on Thursday) this fuse may not be in until Friday, or the Monday following. Bummer... I rented a car, fully expecting to need it for a solid week. So, imagine my elated surprise when I got a call from Tony (he's been there for decades -- a really nice and knowledgeable guy) on Wednesday, just 2 days later, that they received the part and had FIXED the car! Before the holiday! I was able to return the rental after only 2 days use (money saved!) and the car is running like a dream again. If you live in the Smithsburg, MD area (Hagerstown, etc.), you owe it to yourself to try Rusty Nuts the next time you need service. They do it all, and do it well. Thank you, Tony, John, Eli, and the entire team at Rusty Nuts! I will see you all next time...

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Rex R

Amazing service! These guys are as honest and fair as can be. They will treat you right. No high pressure sales tactics here. I found them to be very knowledgeable and respectful. I have used them exclusively for years on my trucks. I respect the fact that they will tell you what you really need right now and what can wait for repairs. The new location is easy to find and very convenient. They have expanded their services to offer repair on not only diesels but gas cars and trucks too. I was even able to get some paint work done and my inspection. Highly recommend this place if you are looking for excellent quality work and fair prices. A++