i lived in philly 38 years, and rode every area there is around 150 miles sq. stick with gas, not only will you use twice the fuel, but you will use twice the pre mix oil. it is very touchy to humidity and temp. you will be jetting it daily. factor in a top end when tuning it your 1 st time.i only ran alky at the drag strip and beach st. for the woods or anything else but straight lines it is a pain in the ass.