[BogeyBoy]

You think you have it bad, my motorhome has a 150 gallon tank. I can fill it from either side. When I fill it from the passenger side it never seems to get "full". Maybe 5-10 gallons off. I just filled up, gauge read down about 1/3 and it took 51 gallons which seems pretty good, only the gauge never gets to full or just over full like most vehicles I have owned. Now, here is the kicker - I have researched an advanced monitoring system and it claims to be totally accurate - can tell me exactly how much fuel I have used. Of course it is more than I want to spend.

My auto's fuel gauge is all over the place. Sometimes it will read 1/2 and suddenly jump to full. Next time I start it the gauge drops to empty. Now I just reset the trip odometer and fill up every 200-250 miles.