You really can't overemphasize the importance of oil to your engine's health. It helps keep your engine both cool and properly lubricated. Check your engine oil often, especially in an older vehicle as they have a tendency to burn oil. Also, maintain a regular oil change interval. Old oil loses its ability to do its job. It can even damage the engine and shorten its life.

You don't have to be a certified mechanic to do a cursory engine inspection. Here are some things to look for:

• Leaks underneath the vehicle
• Low fluid levels (brake fluid, power steering fluid, etc.)
• Damaged or otherwise frayed belts

Top off any fluids that need it. If you notice that your fluids are consistently low, you may want to seek help from a professional.

You cooling system should be monitored often. That means keeping an eye on the radiator fluid level. It also means inspecting hoses from time to time.