Just returned from a 2500+ maiden voyage with our 2018 Valencia and we average about 10 mpg. Set cruise at 65 mph, didn't tow. Mostly flat haul from Michigan down to Florida panhandle.
I will echo what others said regarding a relatively inaccurate fuel gauge. Tank would read near 3/4 empty but upon fill up would only need 60 gallons (out of 100 gallon tank).
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