Gasoline is probably the cheapest thing you will every buy for your car.
Assuming 15K miles/year at 25MPG, you will buy 600 gallons of fuel/year. If the cost difference between 87 and 93 is $0.20/gal, then you will "save" only $120 or about $10/month
For those of you who live in an area where the difference is only $0.10/gal, then you will save a whopping $5/month or $60/year.
Most of you don't have the time/resources Big Jim has to work on his car. (Like a Ford shop that he runs, not a knock on Big Jim, just the facts.) So your best bet is to run the fuel that Ford/SVT recommends.
TB
Who knows gasoline is the cheapest fluid to purchase at the Quicky Mart, in any grade
