molutty

Hi all, The manual says 87 or higher for the fuel type but I have only filled the premium grade (93) so far. But the last time I filled, I filled the regular gasoline. Maybe my imagination, but it feels like the acceleration is a bit slow and rough. Which type of fuels do you use and notice any difference with regular vs premium? Any advice on whether to stick with 87 or go back to the 93? TIA