Is it worth buying premium grade gasoline over regular grade gasoline?
No, unless you own a vehicle that specifically requires premium and states so from the factory. most vehicles are designed and built to run on regular unleaded gasoline. Buying premium gasoline, for an engine that requires only regular unleaded gasoline, is a waste of money. With the money you save, go buy a lottery ticket. P.S. i bought regular unleaded gasoline, a week ago, for $1.19 a gallon.