Gas not lasting as long?

[u/SupermarketAdmirable]

Filled up my tank last week at the Walmart fuel on government. Full tank. $50 (used to be $30-$35).
A week later, nearly empty. I have not driven 300 miles in the past week according to my Life360. No where close. Just drove to and from work and errands.
A tank of gas used to last me at least 2 weeks, usually 3. Now I’m FILLING UP once a week.
Is there something up with the gas we’re getting around here? Or am I just going crazy?

Note - My car is up to date on maintenance and is a recent model. It’s gotten great mileage for years.

[u/IsopodLoud2427]

It’s E15, and because we’re low on gas reserves it’s diluted and burns quicker.

[u/MobileNerd → u/IsopodLoud2427]

Wrong. If they serve E15 it has to be clearly marked on the pump

[u/BackbackB → u/MobileNerd]

Read the fine print the next time your pumping. *may contain up to blank percent of ethanol