How to change the oil in your car
Running out of oil is one of the quickest ways to ruin an engine, but not changing it can have the same effect over time. Oil gets dirty as it runs through your engine, and it loses some of its ability to keep things slick. Further reading Generally speaking, on modern vehicles you need tochange your oilevery 7,500 miles or every couple of years (3,000 miles is still valid for older models)....