Is it E15 everywhere now? I see mostly E10 stickers on pumps in Texas, but maybe that sticker means nothing now. Do have a place nearby that is ethanol free, do buy that whenever not too inconvenient. 2008 sonata for sure runs better on it.
E15 can only be dispensed from a dedicated pump like E85 typically it is right next to it look for a blue hose next to the yellow hose. It also must have a 4”x4” orange and black EPA sticker listing the approved vehicles that may use that fuel which is officially known as U88 the hose color and sticker are Federal laws. U88 is only approved in flex fuel and 2001 or newer vehicles it is in fact illegal to use it in small off road engines or order vehicles this is why it is in dedicated pumps with labels and color coded hoses a.d nozzles so Bubba doesn’t just see the 20 cents cheaper price point and pump it in his 20 year old vehicles tank “by accident” you will.100% know that the fuel you are using is E15 or not no different than E85 which is also regulated.
The Bucees chain has E0 fuel pumps these are the mega chain stations with 100+ pumps on site look for the Red signs directing you to E0 it’s 40 cents more per gallon at the Bucees in Melissa t
Texas vs E10 which is what is mandated here in DFW with E15 being 20 cents cheaper than E10 right now at the same pumps.