What is octane rating? What is cetane number? Gas & diesel ratings. What is octane rating? What is cetane rating? When ...

We all want the best for our cars and trucks, but is premium gas worth the premium cash?

We have to separate the chemical "octane" from a fuel's "octane rating" since they can be two different things. Think about it this way. If you learned your shapes in kindergarten, you should easily ...