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Frequently Asked Questions.


Does Sullivan Tire perform automotive repairs?

Yes! We employ ASE Certified Technicians in every location, and most of our locations have a Master Technician on staff. We offer automotive service from oil changes to brake service to more complicated computer diagnostics on most vehicles. Our technicians are required to attend at least 30 hours of training per year to keep up with today's rapidly changing technologies.

Do I need an appointment?

We do recommend that you set up an appointment with us either over the phone or on our website. However, we will certainly do our very best to accommodate walk-in customers.

Do you offer a shuttle service?

Yes! We offer a Free local shuttle service. All of our locations are equipped with shuttle vans and a driver to take you to your destination.

What credit cards do you accept?

We accept all major credit cards including, M/C, Visa, Amex, Diners Club, and Discover. We also accept the Goodyear credit card.

Do you accept personal checks?

We are happy to accept your personal check with proper ID and a phone number.

Are your shops State Inspection stations?

All of our NH locations are State Inspection stations and several MA locations perform inspections. Please see our locations page for MA locations that perform this service.


Why do I have to pay for tire disposal?

We pay a fee to an outside company to ensure that your used tires are either recycled or properly disposed of in a way that protects the environment.

How much air should I put in my tires?

You want to consult your owner's manual or the placard that is on the doorjamb to get the manufacturers recommended tire pressure. Always  check tire pressure when the tires are cold. If you aren't sure how much pressure to put in your tires, stop by a Sullivan Tire and we would be happy to inflate your tires to the proper pressure.

How often should I rotate my tires?

We recommend a tire rotation every 6,000-8,000 miles. This will help them wear uniformly and allow you to get the maximum life expectancy from your investment.

What exactly is a wheel balance?

Wheel balance is a process in which you install small weights on the wheel to make sure that it is true. If a tire is not balanced you will feel a vibration when you are driving the vehicle, especially at highway speeds. In addition, an out of balance wheel can cause irregular tire wear. Sullivan Tire locations use state-of-the-art computerized wheel balance machines to ensure that your tires and wheels are properly balanced.

Are your shops able to change tires on custom wheels?

Absolutely! We have the latest state-of-the-art tire machines. Some of our stores have machines capable of handling wheels up to 24 inches. Our tire technicians are trained to use these machines and protect your wheels from damage.

Will you match a competitor's price on tires?

In most cases we will match any written tire quote you bring to us. We stock an enormous quantity of tires and can meet just about any budget.

What brands of tires do you stock?

We stock all the major brands and a wide variety of private label tires. Our stock includes: Michelin, Goodyear, General, Kumho, Continental, Dunlop, BF Goodrich, Firestone, Bridgestone and many others. If we do not have a particular tire you are looking for we can order it and have it within a day or two in most cases. Often we can order and have the product within the same day!


When should I have an alignment done on my vehicle?

We recommend having the alignment checked at least once a year and/or when you have the tires replaced. You would also want to have the alignment checked if your vehicle has any of the following symptoms: irregular tire wear, pulling or drifting to one side, steering wheel that is off centered.

Why is my check engine light on?

A check engine light comes on when your vehicles on-board computer system senses a problem. There are many  things that could cause the light to be activated. It could be as simple as a loose gas cap or as complicated as one of the many sensors malfunctioning.

What should I do if my check engine light comes on?

If the check engine light comes on, your vehicles on-board computer system senses a problem. In most cases it is safe to drive your vehicle while the check engine light is on. However, it is recommended that you call your service station and set up a time for a technician to diagnose the problem.

What is involved in diagnosing a check engine light problem?

In order to diagnose a check engine light a technician needs to connect a diagnostic scanner to your vehicles on-board computer. Your vehicles on-board computer will store a code(s) for any specific problems it has found and the technician can read the code using the diagnostic scan tool. After the technician discovers the codes a series of tests are performed to figure out the exact nature of the problem. Depending on the severity of the problem, it may take several hours to diagnose and repair the issue.

Can Sullivan Tire diagnose an engine light or computer related problem?

In most cases, we certainly can! We are proud to employ some of the best certified auto technicians in the business, and our locations are equipped with the latest state-of-the-art diagnostic tools. In some cases we may not be able to diagnose a certain application and we will tell you this up front and provide a recommendation for you.

Why do I have to pay for diagnostic labor?

Today's vehicles are extremely complicated machines. It takes time, a qualified person and special diagnostic equipment to diagnose today's vehicles. We do our very best to keep the diagnostic time to a minimum, and we will keep you updated every step of the way.


Can you tell me the required preventative maintenance on my vehicle?

Yes. All of our shops have the All-Data computer systems. With this system we can look up the manufacturers recommended maintenance on just about every vehicle on the road today. We would be happy to provide you with a Free print out of the maintenance schedule specific to your vehicle. We would also be happy to provide you with a Free estimate on any of these services.

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