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So I filled up with Flex Fuel in my '12 Terrain SLE for the first time last week. Previously I had been getting around 24 MPG with regular 87 octane gas. I found with Flex Fuel I am getting closer to 20 MPG. It's a small sample size for the Flex Fuel so I will have more accurate numbers, but it made me think. What price difference do I need to see in order for Flex Fuel to make financial sense. So I made this.
https://docs.google.com/spreadsheet/ccc?key=0AmwmgmLeStmIdGJ3blFzSGpFRGN4S2lTUnRoOVlQc2c&hl=en_US#gid=0
Look for your regular gas price and trace it up. Anything in Green and you are saving money, blue you break even, and red you lose money. The numbers represent savings in cents per mile.
I'll update as I get better MPG numbers.
https://docs.google.com/spreadsheet/ccc?key=0AmwmgmLeStmIdGJ3blFzSGpFRGN4S2lTUnRoOVlQc2c&hl=en_US#gid=0
Look for your regular gas price and trace it up. Anything in Green and you are saving money, blue you break even, and red you lose money. The numbers represent savings in cents per mile.
I'll update as I get better MPG numbers.