FAQs

How often do I need to change my oil?

Non-synthetic oil should be changed every 3,000 miles, and synthetic oil every 5,000 miles. Oil gets contaminated from combustion gases that leak by the pistons and valves. These gases get recycled back to the intake and get burned again when the oil gets hot. It is important to know that in-town driving will shorten the life of the oil and cause a faster build up of intake deposits.

What is the tire pressure of my tires?

You should always set the tire pressure by the tire manufacturer’s pressure specs. They can be found on the side of the tire. To realize better mileage, tire wear, and handling, run the pressure at the maximum pressure. You need to remember car makers do not make tires. The tire manufacturers are the experts and should be your source for pressure information. Car makers are more concerned with the best ride not the best mileage, wear, or handling. Additionally, the pressure car makers recommend is for the tires that they install at the factory.

How often do I check the anti-freeze? Does it need to be changed?

You should check the anti-freeze and the oil at least every other gas fill-up on newer cars and every fill-up on older high-mileage cars.

How long do spark plugs last?

This depends on the type of spark plugs that are in your car. Older cars (15-20 years old) are more likely to have standard plugs and they last 12,000-15,000 miles, newer models up to the year 2000 are platinum tipped and will last 30,000 miles. Some 2000 and newer have iridium tipped plugs and will go 90,000 to 100,000 miles.

Why are your oil changes more expensive than oil change only shops?

Unfortunately you get what you pay for. Import Doctors use only the best quality parts OEM (original equipment manufacturer) or better. We are highly trained and ASE certified technicians. We deliver on the most professional and quality oil change service. We find many cars serviced at the "fast food" oil changers have loose oil filters and drain plugs, as well as under or over filled crankcases. With Import Doctors you can be confident that your oil change will be performed correctly, and there will be no surprise repairs caused by improper work.

What is the difference between timing belts and timing chains?

Timing belts are rubber-toothed belts that drive the cam shaft on overhead camshaft engines (most common type manufactured today). They need to be replaced as a maintenance item (refer to owner's manual for mileage details). Timing chains can be found on both overhead cam engines and non-overhead cam engines; they are not a maintenance item and may go 200,000 miles or more before needing to be replaced.

Why should I have you perform a pre-purchase inspection on a car before I buy it?

When buying a pre-owned car it is imperative that you know what you are getting yourself into. You want to make sure that you don’t get more than you bargained for. We provide a thorough inspection both inside and out. We check for body damage that may be covered with bondo and paint. We also insure that the vehicle is sound mechanically by checking the engine, drivetrain, belts, and hoses. We also do a comprehensive safety check including the breaks and looking for suspension damage and wear. You do not want surprises after you have bought the car. We can’t see everything but we can see a lot. An additional benefit of having a professional inspection is that you will be armed with additional information when negotiating a sale price.

If you do my scheduled services will my manufacturer or dealer warranty be intact?

Yes, we can do all of your regular maintenance and service, keeping your factor warranty intact. However, the dealer must perform factory warranty and recall work. Only the dealer will complete this work at no expense to you. Import Doctors can perform any other work you may need. It makes sense you use the dealer when they are paying for the work, or it is "free" work.