Quote:
Originally Posted by bitsamonkey
I have a hard time believing your mpg's. How many times have you calibrated that sender by filling the tank to the brim? It took me at least three or four times to get it within a gallon when filling up when I had one of those on my last boat. If it is spot on, then congratulations, don't change a thing.
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We used to have a Flo-Scan analog gauge, and the burn rate was the same in gallons per hour. The Speed is controled by GPS, so we know the speed is accurate. The rest is just math....so I feel the #'s are accurate. I am very happy with the numbers. My Yami has a new powerhead on it with about 500-600 hours of engine time.
As for the HDS fuel usage sensor, I don't think it has any "adjustment" feature to it. Nor do I think the HDS-7 head unit has any adjustment either. But, based on the burn rates being the same for the HDS and the flow-scan, I feel comfortable enough that it is pretty accurate.