Macdonald Motors Service Questions & Answers

Below are some commonly asked questions.  If you do not see your question here, please do not hesitate to contact us.
Service Questions & Answers

Macdonald Motors - Service Center - Car Dealers Maine Frequently Asked Questions

What does a cabin air filter do?

What does it mean when the yellow check engine light comes on?

Do you have wireless Internet available in your waiting area?

How do I schedule a service visit?

Why is my tire pressure warning light on?

How often should I change the oil in my vehicle?

What are the benefits of synthetic oil?

When and why should I rotate my tires?

When do I need a four wheel alignment?

What are the benefits of flushing my automatic transmission?

How can I tell when I need new tires?

What steps can I take to improve fuel economy?

What are the hours of the service department?

When can I put on studded snow tires and when do they need to be off?

What does a cabin air filter do?

It's job in to filter all of the air that comes through the car's HEATING & AIR CONDITIONING system
to prevent pollutants, such as dust, pollen,smog and mold spores from entering. The filters can
also catch rodent droppings, leaves and other unwanted debris.

What does it mean when the yellow check engine light comes on?
This indicates the vehicles computers have detected a malfunction. It can be as simple as a loose fuel cap; however, in order to be sure, it does need to be checked by Macdonald Motors in case the vehicle is in need of repairs.

Do you have wireless Internet available in your waiting area?

Yes, Macdonald Motors offers free wireless Internet to customers waiting for service.

How do I schedule a service visit?

You can schedule an appointment by either calling our Service Department directly at 207-647-3304 or you can schedule it right here on our website.

Why is my tire pressure warning light on?

The tire pressure in one or more of the tires is below factory specifications. It can be as simple as the cold weather condensing the air; however, in order to be sure, it does need to be checked by Macdonald Motors in case the vehicle is in need of repairs.

How often should I change the oil in my vehicle?

The oil should typically be changed every 3 months or 3,000 miles or as specified by your vehicles manufacturer.  

What are the benefits of synthetic oil?

Synthetic oils will keep the engine cleaner, provide better wear protection, and improve start-up at cold temperatures.

When and why should I rotate my tires?

The tires should be rotated every 6,000 miles. This will help to maximize the life of the tires by providing even tire wear.

When do I need a four wheel alignment?

Having an alignment done at least once a year will help with tire wear and can increase fuel economy.

What are the benefits of flushing my automatic transmission?

A transmission flush will help extend fluid life. It can smooth out rough and hard shifts, remove contaminated fluid, and revitalize seals and o-rings.

How can I tell when I need new tires?

A tire is worn out when its tread is equal to 2/32nds of an inch. This is indicated by a wear strip in the tire grooves. An easy way to check is to use a penny upside down on the groove of the tread and if you see the top of Abe's head you need new tires.

What steps can I take to improve fuel economy?

Follow the manufactures required maintenance schedule. Avoid prolonged engine idling. Keep tires properly inflated. Observe posted speed limits.

What are the hours of the service department?

Monday thru Friday 8:00-5:00. Saturday 8:00-12:00

When can I put on studded snow tires and when do they need to be off by?

Studded snow tires can be put on after October 1st and need to be off by May 1st.