A car repair shop can fix the more serious problems that arise, but there are many things you can do to maintain your vehicle. Most of these tasks require little time and money and will extend the life of your car or truck. Every owner's manual has a maintenance schedule that lists the recommended intervals for items like engine oil, air filters, and even belts and hoses. This is a good guide for ensuring that your car maintenance is always in top condition, but it's also important to keep an eye out for signs of potential trouble. If you notice a loss in smoothness when driving, for instance, your shocks or struts may be wearing out. A mechanic can inspect these components to ensure that your ride remains comfortable and safe. An oil change is the easiest way to check your fluid levels, but you should also look at the engine coolant level and air filter. The coolant helps the engine operate at its peak temperature, which is required for proper fuel combustion and prev...