A: I have had several engineers from oil manufacturers on my radio program and all say that, once a bottle of oil has been ...

It's easy for the uninitiated to think that oil is oil, no matter what type of engine it's going into. After all, it's only ...

Widespread use of traditional stoves has been cited as one of the significant contributors to climate change. These cooking appliances not only consume large amounts of fuel but also emit copious ...