Originally Posted by goldwing

I've read lots of debates on this on other forums. General opinion is that most gas is dumped into common pipelines (you didn't think the majors had private pipelines for distribution, did you) where it goes to various distributors. The distributors put in the additives that differentiate Shell from Speedway. Not sure where the ethanol comes from. Anyway, gas is gas with the exception of the additives and, of course, the octane.
No - it won't hurt your vehicle.