ScotRail has begun trialling Hydrotreated Vegetable Oil (HVO) as an alternative to diesel in one of its Class 156 train units. The trial was initiated on 19 February, and is set to run for 12 weeks at ...

Despite what it might look like on the surface, too much oil can be the result of dehydrated skin. “Sometimes your glands produce more oil than normal because it’s dehydrated,” says Vanessa ...