Join Date: Jul 2002
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checking fuel level
A dipstick is one simple method IF you have access (above, for the length of the stick) to the tank AND IF you calibrate the stick (since most tanks are not uniform in shape).
If you can, empty (or nearly so) the tank, e.g. first by using the boat and then by removing the rest, filtering it and placing it in jugs. Then begin adding it back in and, every 5 gals or so, notching the stick where the fuel level is found. I''d also recommend you do the first few notches (when the tank is emptiest) in small gradations, as its when the tank has very little in it that you want the level to be most accurate.