Fill with washer fluid only

Don’t add water to the windshield washer reservoir. It won’t clean as well as washer fluid, and it may freeze in cold weather and damage the system. Don’t try to run your windshield washer system once you suspect there’s no more fluid in the tank, or you may damage the washer fluid pump.

Clean your engine

There are several reasons to wash your engine at least every year or two. A clean engine will run cooler than a dirty one. You’ll be more apt to tackle routine belt and hose checks and the like if you know you won’t get covered with grime every time you do so. A clean engine will also make it much easier to spot leaks and to service components. Remember to protect sensitive engine components — including the air intake, distributor, and electrical parts — with plastic bags before getting started. Use dishwashing liquid or other grease-cutting detergents and a bristle brush to scrub engine and components surfaces. Rinse thoroughly. Heavy-duty engine cleaning products are available at automotive parts stores. Follow the directions carefully. You may also have your engine professionally steam cleaned.

Keep leather from drying out and cracking

Leather cars seats are durable and don’t require a lot of maintenance. After a few years, however, the seats can become soiled. Use a leather cleaner to remove dirt and stains.Then apply a leather protectant formulated for pigmented or top-coated grain leather (the leather used for most leather car upholstery). Protectants will resist stains and make the upholstery easier to clean in the future. Choose a protectant that includes conditioners to keep your leather supple.

Fix bad weatherstripping immediately

If your weatherstripping is letting rainwater leak into the interior of your car, take a look at it and decide if you can repair it or if it needs to be replaced. Small leaks can be handled with brush-on seam sealers. Resecure loose sections, not otherwise damaged, with trim adhesive. Torn sections may be repaired with special caulking available at auto parts stores. You may also be able to extend the life of worn-but-intact sections by inserting foam rods, available at automotive stores, into the hollow section of the weatherstripping. If you decide to replace entire sections of gasket, don’t simply buy generic stuff such as you’d use around the house. Buy a product that matches your car’s original weatherstripping — it’s available in a wide variety of profiles from dealerships and automotive mail-order catalogues.

Clean the inside, too

Vacuum and sponge your interior every time you wash your car. Dirt particles are abrasive, and spilled liquids, such as soda, can be corrosive.Vacuum your interior thoroughly with a powerful vacuum (small cordless models are generally too weak). Use the appropriate wand heads when vacuuming. The bare metal wand can mar and scratch surfaces. Sponge vinyl surfaces clean with a solution of mild detergent and water.

Preserve your car during long-term storage

If you are not going to use your car for more than a month, store it properly to prevent unnecessary damage and repairs upon your return.

• Fill the gas tank to help prevent condensation from accumulating in the gas tank. Add a fuel stabilizer and drive the car around a bit to distribute the additive to engine parts.
• Wash and wax the car thoroughly to protect the finish.
• Place a vapor barrier on your garage floor. A 4-mil polyethylene drop cloth will do.
• Disengage the parking brake to help avoid brake corrosion.
• Put the car on jack stands to take the weight of the vehicle off the wheels and tires.
• Disconnect and remove the battery to keep it from draining. Place the battery on a trickletype charger. Or periodically drain the battery, using a small light bulb, and then recharge it with a low-volt charger.
• Plug the tailpipe with a rag to prevent moist air from infiltrating into it.

Be patient during the break-in period

You’ve bought your dream car and now you want to make it last at long as possible in top condition. Here are some things to remember as you pull it out of the dealer’s lot:

• During the break-in period, typically the first 1,000 miles (1,600 km), keep your speed under 55 mph (88 kpm) or to the speed recommended by your car’s manufacturer.
• Avoid heavy loads on the drive train, such as towing trailers, and loading the roof rack or trunk with heavy construction materials.
• Do not allow your new car to idle for long periods — this is good advice for the life of your car, but especially during breakin. The oil pressure generated by doing so may not be sending oil to every part of your engine.
• Use only light to medium acceleration, keeping the engine rpms below 3,000 for the first few hours of driving.