No. Same mpg in all three. 2 use premium, one regular (GLI, turbo Miata, Prius) There is something wrong with your car you just haven’t seen it yet. I’d get an

No. Same mpg in all three. 2 use premium, one regular (GLI, turbo Miata, Prius) There is something wrong with your car you just haven’t seen it yet. I’d get an odb2 scanner and look at real-time data. Duty cycle and o2 readings in particular. Extrapolating your sample of 1 to the population mpg and assuming a correlation with the fuel price change is as relevant as making a correlation with the horoscope predictions of the month. There are so many things that could change that reading that you’re not telling us that this post is pretty useless. It would be more useful to try to troubleshoot your mpg change.