Low Fuel Warning Light

I don't know, but my 2001 Civic's fuel light is worthless, I don't even pay any attention to it whatsoever. And the fuel gauge is very inconsistent too.

I forget the behavior of my 87 Accord, I think the light went on rather late, but all the Hondas I've had since, the light always went on with 2 to 3 gallons left, generally closer to 3, and never failed to go on AFAIK.

J.

I've noticed strange gauge behaviour in my 2004 Civic as well. The "top half" seems to go down more quickly than the "bottom half". But I really can't complain; the car did 42mpg on a recent road trip.

On the other hand, the gauge in my '93 Accord was the opposite. The "bottom half" went down more quickly than the "top half".

I never let the tank get low enough on either car to trigger the light.

Isn't it considered bad form to run the gas tank so low? The reasoning I recall is that stuff settles to the bottom and you don't really want that being sucked into the engine. Of course, if you do it all the time, I guess the sludge is sucked in in small stages so perhaps isn't as bad as doing it all at once. But I'm just a lurker. Perhaps the knowledgeable folks will chime in.

That's not the only reason. The biggest reason I see is that the fuel pump, if in the tank, uses the gas for cooling. Running tank too low reduces it's ability to be cooled by the fuel.

Same thing with my 2004 Accord, it may be due to an odd shaped tank while the sending unit is linear. I had an older Camry where the top half of the tank would last twice as long as the bottom half.