On Jul 19, 12:42 am, ymg200 <ymg...@[EMAIL PROTECTED]
> wrote:
> loewent,
> I do not think that fuel guage is to blame. Since MPG went back to
> normal, the last tank lasted (until low fuel light went on) for 340
> miles (as opposed to 180 miles when I screamed for help).
> I am still puzzled why MPG suddenly dropped from 300+ miles per tank
> to 180 miles per tank and then suddenly went back to normal. I am
> reluctant to blame bad gas since I did fill up at the same gas station
> before. In addition, such a poor gas quality must have resulted in
> power loss, which I did not notice.
> I think that tem****ary MPG drop might have been computer related. If I
> am not mistaken, computer adjusts ignition timing based on gas quality
> (octane number) so that there is no detonation. As I mentioned before,
> I installed anti-theft device just before MPGs dropped. I had to
> disconnect computer while I was installing anti-theft and that might
> have reset computer memory, specifically its adjustments to gas
> properties. Once I filled up the next tank, computer migt have
> adjusted back and MPGs went from 180 miles per tank back to 340+ miles
> per tank. I am not a specialist in car electronics. Does my
> explanation seem realistic?
>
> On Jul 15, 11:19 pm, "loewent via CarKB.com" <u10197@[EMAIL PROTECTED]
> wrote:
>
> > some research shows that the fuel gauges in these cars are known to be
> > inaccurate. I find that it is very difficult to fill the tank all the
way at
> > certain gas stations too.
>
> > And it has a huge tank, 65 liters!
>
> > ymg200 wrote:
> > >loewent,
> > >Last weekend I filled gas at a different gas station, and MPGs seem
to
> > >get back to normal. I did not do any change besides changing the air
> > >filter to the old one in the middle of the previous tank, which did
> > >not have any effect on MPG: half tank for 90 miles before changing
air
> > >filter back, another half for 90 miles after changing filter back.
> > >Since I filled up last weekend the car made 260 miles and fuel guage
> > >shows about 1/8 tank left. I expect the tank to last for at least 300
> > >miles (previous tank was gone at 180 miles).
> > >I will re****t the mileage when this tank is gone.
>
> > >Thank you.
> > >Yan.
>
> > >> how about my hole in the gas tank theory? I just noticed this week
my 93
> > >> altima has a leak in the filler neck....
> > >[quoted text clipped - 19 lines]
>
> > >> - Show quoted text -
>
> > --
> > Message posted via
CarKB.comhttp://www.carkb.com/Uwe/Forums.aspx/nissan-altima/200707/1-Hide
quoted text -
>
> > - Show quoted text -
Have any sons with a cash flow crunch, cars of their own and a burning
need to get somewhere?
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