The USDA says butter is safe at room temperature, but Land O'Lakes draws the line at 4 hours. The post Land O’Lakes Finally ...

A global review finds that water-in-diesel emulsion can slash NOx and soot at the same time, offering a cheaper path to cleaner diesel engines.

Biodiesel can reduce emissions, improve fuel-system lubricity and use existing diesel infrastructure. But NACFE’s Messy ...