• Jamie and Ryan welcome you to Arnold's.

  • Cincinnati's only branded heating oil supplier.

Arnold's Marathon has been serving the New Richmond area for more than 50 years.  You can be sure that we will be here for all of your automotive repair, gasoline and heating oil needs. 

Stop on in or give us a call today!

You will be glad you did. 


Auto Repair by Arnold’s Marathon in New Richmond Ohio

Your premier car and light truck repair and service shop, home heating oil delivery and quality Marathon Gas Station.

At Arnold’s Marathon in New Richmond Ohio, we are proud to be a full service auto repair shop. In New Richmond Ohio, our highly-trained automotive mechanics take great pride in supplying all areas of car repair including oil changes, engine repairs, transmission repairs, brake pads and rotors and electrical systems diagnostics and repairs.  Each of our specialists undergo extensive automotive repair training to meet all your auto repair needs.
Arnold’s Marathon is honored to have served the New Richmond area with vehicle maintenance experts for the past 58 years. While we focus on Auto Repair, Engine Repair, Transmission Repair, Brake Repair and Auto Electrical Service, we also provide a long list of other car repair services listed on our repair services page. Our experts have built our reputation by providing consistently superior service here in New Richmond.
No matter what your vehicle needs, come see us at Arnold’s Marathon today! From Brakes to transmission to engine work, we are the best one stop to repair your car or light truck in New Richmond and Greater Cincinnati. We provide trustworthy, fast, reliable, and quality work at the right price. Don’t just pass through; come see us for any of your auto repair needs.

Our Services

Arnold's Marathon is here to help you maintain your vehicle and keep it on the road longer.


Your tires are your only contact with the road and are vital to your vehicles performance and safety.

Heating Oil

Arnold's Marathon is Cincinnati's only branded heating oil supplier.  Click here to see why that should matter to you.

What's going on at Arnold's?

Check out the latest happenings at Arnold's Oil as well as recent car care tips.

Top Reasons Why Your Car Won’t Start

Top Reasons Why Your Car Won’t Start

There’s nothing more frustrating in the cold weather of Cincinnati Ohio than getting into the driver’s seat, turning the key and then your car won’t start. Whether you’re at home or away from it, your first reaction may be to panic, but stay calm! Sometimes, the root cause of a car not starting is something… Continue Reading

Ethanol Free Gas now available

Ethanol Free Gas now available

Did you know that most gas stations are not selling you all of the gas that you are paying for?  What do we mean by this?  You see, most gas stations are selling gas that is 10% ethanol and not 100% gas. Ethanol is another term for ethyl alcohol, and is a flammable, colorless liquid,… Continue Reading

Satisfied Customers

At Arnold's, we have worked hard over the last 58 years to develop a reputation for professional full service auto repair and we pride ourselves on having more than 75 years of combined ASE certified experience available to work on your vehicle.

Proudly serving New Richmond Ohio and the surrounding Ohio cities of Bethel, Georgetown, Amelia, Batavia, Summerside, Forestville, Mt. Washington, Dry Run, Turpin Hills and Kentucky cities of Alexandria, Cold Spring, Highland Heights, Taylor Mill, Independence, Fort Mitchell, Lakeside Park, Florence, Erlanger, Crestview Hills, Lakeside Park and more.