I've heard that some manuals didn't include the CUTOFF information because it was a last-minute addition to the gauge so it may not even be in your manual. I believe the scangauge website has the updated manual if you want to see it for yourself.
I have my Tank Avg MPG and Current Trip MPG programmed in. The gauges I use for daily (non-testing) drives are instant MPG, coolant temp, throttle position, and Avg Trip MPG.
Don't be surprised if it takes 2 or 3 tanks of using the SG to get it calibrated (it took me 2 tanks) so what the SG says agrees with the actual results at the pump. Couldn't have got my 43mpg tank without it.
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