It's possible to reuse oil from your motor, but it's obviously not as easy as just emptying and refilling the oil tank.

Harley-Davidson motorcycles require a three-hole oil change after the first 1,000 miles and then every 20,000 miles ...

Rosemount CX2100 In Situ Oxygen Analyzer with remote setup and diffuser options streamlines maintenance and lowers total cost ...

Using water to see if frying oil is hot enough can be dangerous. Instead, dip the handle of a wooden spoon in a deep fryer or skillet to see if the oil bubbles, says pro chef Maricel Gentile.