Unveiling the Octane Ratings - from knocks to burns, demystify the numbers on the pump for optimal car performance. Get fuel-savvy insights now.

You have a choice when you pull up to the pump.Most gas stations have three choices for fuel for your vehicle, based mostly on octane ratings.Which one is the best for your vehicle?

In 2007, following an audit of retail gas pumps, PA Auditor General Jack Wagner recommended the state begin testing octane levels. Greenleaf said he’s was working on this legislation before then.

The 88-octane is just a fancy way of saying e15 gas. This is a blend of gasoline that blends gas with 15 percent ethanol. 87-octane can have no more than 10 percent ethanol.