hmm.. napahanap pa ako ng ruler tuloy at tinignan yung 1cm... ehehe...hmm... almost 1/4 ng gauge if you ask me ang galaw ah...

1) maybe the gauge itself is faulty
2) maybe the fuel sending itself is the culprit (floater type ba yan?)
3)Yung sa crudo... may not be related.. gaano kabilis maubos?? wala ka naman visible leaks? hows your combustion? (usok sa tambutso?)

IMO lang.. kung ang reading ng fuel tank mo e tama naman at standstill... just live with it na lang...