文中的illegal cooking oil就是指“地沟油”，也称为swill-cooked dirty oil，指的是从kitchen waste（餐厨垃圾）中提炼出的油，含有大量有害毒性物质。使用illegal cooking oil已成为餐饮行业的open secret（公开的秘密）。

Not only will dirty oil stop performing well, but as more carbon deposits form, even the flow rate will be diminished. Then, a thick goo-like consistency develops, and the oil filter becomes clogged.

Not only will dirty oil stop performing well, but as more carbon deposits form, even the flow rate will be diminished. Then, ...

Engine oil is the lifeblood of your vehicle, and it's important to change it on schedule. However, can you just top it off? Here's what you need to know.

TORONTO—Major oil companies, under pressure from investors and environmentalists, are fleeing Canada’s oil sands, the fourth-largest oil reserve in the world and by some measures one of the ...

An unexpected demand boost for dirty fuel oil is poised to ease with the return of some OPEC+ crude supply from this month. Cuts by the producer alliance combined with sanctions on Venezuela and ...

Hopes for a speedy resumption of oil exports from Russia to Poland and Germany along the Druzhba pipeline route are fading after plans to remove dirty oil from the pipeline had a major setback ...

Untrained and under-equipped, fishermen in Dalian assisted in the oil spill cleanup effort for compensation. While the their efforts made tremendous contributions, they also came at a high cost to ...

Hollander said this week that, taken together, the dirty bathtub and dirty blizzard may have sent up to 30% of the spilled oil to the bottom of the Gulf of Mexico.