Being mindful of the basic cleanliness of machinery will assure longer life for lubricants and the equipment it flows through, according to a Chevron official's list of best practices.

Automobile sales in China rose 6.9 percent to 23.5 million in 2014 - another record for the worlds largest auto market.

Idemitsu Kosan Co. repudiated a news report suggesting that it has agreed to purchase fellow Japanese major Showa Shell Sekiyu, but it acknowledged that the companies are discussing potential cooperation.