All I know it was full when we left and at dock when we returned it was 3\4
not very scientific but all i had to go by
Yamaha performance numbers claim 5.4 gal an hour at 3500 rpm or 4.9 round up to 5 MPG added 4 hrs to the hour meter .. Avg 3800 rpm for the trip .. still would think I used more than 30 gals. I am not a speed guy
its the newest 4cyl F200xb motor
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