Fuel Gauge

[Mick]

Hey on an R33 does anyone know if the 3/4, 1/2 and 1/4 marks are acurate, umm what i mean is that they are not equal, if you notice the 1/2 to 1/4 and the 1/4 to empty segments arnt even, the 1/2 to 1/4 segment is bigger and that may be because of the reserve, but the full to 3/4 is smaller to the 3/4 to 1/2 also, so my question is does each segment represent each quater of the tank, because if so then the bigger segments should dwindle down quicker than the smaller segments ..

Damn this is so hard to describe but i think ive described it right ..

So has anyone else noticed this too and does anyone know ..

Because i swear that the 1/2 to 1/4 goes down quicker than the 1/4 to empty

[Kinks]

Mine seems to stay on full for a fair while (>100km) before it starts moving, but I am pretty sure I've filled up on half before and it used about 30L. Not sure about the quarter markers I generally know that I can get ~450km to a tank so if I'm pushing above 400 then I start looking for a servo.

Lately I've just been filling up every tuesday regardless, because it's the cheapest day of the weekly cycle

[GTR-N1]

The sectors on most Nissan fuel gauges and even most other brands of car are approximations only. The fuel level can drop slowly or quickly between sectors.

If you fill up each time, you'll get to know whether or not the reading on the gauge is approximately corresponding with your trip meter providing that you 'zeroed' your trip meter at fill-up time. This is also the best way to gauge your fuel consumption ie. by checking how many litres you needed to fill the car; as well as how many Kms you ran up on the trip meter. So if you ran up 400Km on that tank of fuel and you needed 48 litres to fill it just now, just divide the 48 by 4 and this gives you the Consumption in litres/100Km.

Many non-turbo cars which have a low-fuel-warning light will have about 100Kms left in the tank when the light comes on.

Depending on how you drive your car (with your right foot), a turbo car should be filled up within 70Kms of the light coming on.

Most mechanics associated with our cars will correctly tell us to fill up asap if we let the fuel level drop to that light coming on.

And that's despite the fact that if we are using fuel with an alcohol component in it, that the alcohol helps to dissolve stray hydrocarbons and water.

Many Enthusiasts will fill up before the fuel level drops to the approx 25% mark.

Some car manufacturers (like BMW and others) that make luxury models with on-board computers, have a sensor that is extremely accurate with regard to how much fuel remains and even how many Kms can be run before Empty.

[SSHatch]

Hell mine was showing 1/4 tank the other week before I headed down a long windy downhill section of road. Bout half way down the fuel light came on and the gauge was right under the empty mark. Got to the bottom and headed along the open hwy again and low and behold was back up just past 1/4. Next uphill section it went up to 1/2.

They are as they are called, a gauge. Only an estimate of whats left in the tank. Yeah as Terry says, some new cars are extremely accurate but 32 and 33 Skylines are far from new.