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Scanguage says 53.6mpg TANK, actual was 45.9??
Ok, so this is my first tank using the SG II. Something is obviously not right. The only thing that comes to mind is that I changed the way I was driving and used a LOT of P&G. I noticed that when I do this, the SG goes to 9999 instant mpg when I'm coasting in gear. I'm assuming that this is because the fuel injectors turn off? At least that's what I've read.
Why in the world would there be almost a 10mpg difference in what the SG is reading and actual mpg's? Do I need to change some settings? Help!!
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