i usually will use bp,shell,speedway or major truck stops and all i ever buy is premium gas regular 87 isnt so good with premium i noticed an increase in horsepower and more miles to the gallon. just go with what u feel comfortable with. however buying bad gas is a lot easyer than running out and pushing ur bike on rough uphill terrain just to get good gas. buy a minium amount of gas to get u to the next good station