SEATTLE -- Friday is the first full day of summer. If you're planning a family road-trip, now is a good time to get a tune up before hitting the road.

The best way to find an honest, good mechanic is through word-of-mouth referral. Ask friends, family and neighbors who they trust with their cars.

You really have to learn to trust your mechanic. The worst thing people do is ask 50 people about a problem with their car and they get 50 different answers. So once you a find a good mechanic, you've got to put trust in them, said Jeff Johnson of Johnson s Auto Repair.

Experts recommend also checking out repair shops. Make sure it's clean and organized, and find out how long the shop has been in business.

When it comes to car maintenance, experts recommend checking and changing your oil regularly. You should also have your water, tires and wiper fluid checked.

If you're considering buying a used car, make sure to have it checked out by a professional before making a purchase.

Everything that goes on to a car can be really looked at underneath the vehicle to see what its life's been like. It s very important for someone to look at a used car. There are a lot of bad ones out there right now. Used cars are the hot commodity right now, said Johnson.

When should you see a mechanic versus the car dealership?

Johnson recommends for things like airbag issues or parts in the dash, the dealership is the place to get that work done. A good repair shop should tell you if it's better to go to a car dealership for certain maintenance.

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