Change Your Oil Frequently
Most oil companies say for maximum protection it’s a good idea to change the oil every 3,000 miles or every three to six months, depending on the type of driving you do.
But a new engine with little or no wear can probably get by on oil changes every 7,500 miles or so. However, as an engine accumulates miles, it dumps more unburned fuel into the crankcase. This dilutes the oil, and causes it to break down. When the oil isn’t changed very often, you’ll get accelerated wear and tear on the engine and all the problems that come with it such as loss of performance and fuel economy, increased emissions and more oil consumption.
Changing your oil regularly is the best preventive maintenance you can do,and is cheap insurance against damaging engine wear. You’ll always save more money in the long run, especially if you keep a car for more than three or four years.
Change the Filter Every Time
You might be tempted to replace the oil filter only ever other oil change to save money but don’t do it.
To save weight, cost and space, most oil filters on today’s engines have been downsized. Instead of a quart-sized filter that was once common on most engines, many have been replaced by a pint-sized (or smaller) filter. And smaller filters obviously have less total filtering capacity. They’re adequate for changes at 3,000 mile intervals — but can run out of capacity when going longer, say 6,000 or 15,000 miles. The best policy is to just replace the filter every time the oil is changed. The return on this simple investment can be monumental and is highly recommended.