certified technician to do it can affect the efficiency of a car's engine know your vehicle's maintenance you don't want to do it yourself months will protect the paint job and also help preserve your car's value if you don't know how to do simple with an experienced family member or evans adds that you can ask your local facilities would be more than willing to show you how to check the basic mainte- nance items," he says fix says that if you want to learn more “don't delay on repairs and mainte- repair can get very expensive.” keep your windows clean-inside you safer “eighty percent of your driving deci- sions are based on visibility," says fix use dish soap pay attention to trouble lights on the check the owners manual to determine your technician for any necessary repairs that you can't do yourself kirkland full synthetic sae 5w-30 motor oil 2dexo can michele wojciechowski is a national award- winning writer based in baltimore just for the pros don't attempt the following repairs unless you're a professional vehicles can have more than 200 proper computers or programs to diagnose or repair them vehicles require special tools for the brake calipers changing the headlamp on most newer cars requires removing clips and retainers needing to be removed and replaced is more complicated than people often try to fix it themselves and end up regretting it.—mw