Depending on the BMW motorcycle engine, you may need to use premium gas to ensure optimal performance. Here are the bikes ...

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 ...

Costco’s premium gas, available at locations nationwide, has sparked a debate among drivers about its exact octane rating. Is it 91 or 93? And does this difference have any significant impact on their ...