How outstanding parts delivery was fast? Good quality parts. Keep my old Ram running forever. Thank you

I have ordered many parts from these guys. I absolutely love that they are local to Ohio. Their story is awsome but their products are spot on!! Best brakes I have ever ordered and man these prices are great. Super happy with the quality. AND THE STICKERS!!!

Engine running smoother, and better mpg, great product

This is the second time I’ve serviced my transmission first time with this set up from Dr. Diesel took my 45 foot horse trailer above 10,000 feet and Colorado last week transmission shifted great temperatures were down 10 to 12° and the cost of this kit as well below others

Full package as promised. Will reorder when needed

We just completed the first phase of Kane’s Great Adventure celebrating our 6 year old beating cancer!! 15,000 miles, 48 states, and 36 national parks, in 62 days! We only trusted Doc’s to keep us running smooth! Next up, 2 more states, 27 more national parks! LETS GO!

Works Great Fits Great Truck Breaths Great 👍

I bought the Ram 3500 after the first 10k mikes it was time for an oil change and i figured i do the filters as well, 750.00 , yeah no, i can do it myself for 250.00 and burn the old oil in my smudgepot, for heat in the back yard in the winter so, thats what we do. I can afford to pay the dealer but i cannot bring myself to pay 500 bux in labor for 45min of work.

These filters have never failed me. Been ordering them for years and always give the best protection for my 2019 2500.

I’ve purchased rotors, hub assemblies, brake pads, fuel filters, and oil service kit and all of them fit and are good quality for a great price

👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻

Yeah, What the Fuel Mileage? The only thing I changed was my DEF choice to Doc's. I am also using the DEF additive from Doc's. My trip from Orange County CA to Astoria OR to Mountain Home ID and back was the best MPG I have every reached. My rig is not light and I would say its anti-aerodynamic, but 15.8 mpg overall is 2.2 mpg more than the last 3 exact trips. With a 52gal tank, that 2.2 is significant. Soooo.... Doc's is the boss . .

This is exactly what everyone with a diesel truck needs! Great products that fit and actually work! Never let me down yet and I am a Hotshot trucker so my truck is constantly being used and so are Doc’s products.

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What a stand up company!!, had an issue with a couple of missing items that had been ordered, sent a couple emails , left a message , was contacted via telephone, was reassured that said items would be shipped out , and that they where ! Stand up customer service , I’m greatful I stumbled onto you all ! Have my biz for the foreseeable future!