Fuel tank capacity?

[Bengoshi]

When the light comes on and I drive around until the needle is on E, I put in about 13.3-13.5 gallons so the reserve on E is about 2.5 gallons for me.

[NickRav4]

Originally Posted by BigSwede

Just filled yesterday right on a quarter, got 10.7 gallons IIRC.

A gas gauge is not a super precise measurement, nor does it need to be. And I suspect gas pump calibrations also vary more than they are supposed to, which would impact alleged fill quantity.

the only problem I am having in my 2006 sport is that when I am trying to figure out my gas milage i just cant go by what the tank is supposed to hold at certain lines, compared to what it is actually holding.

[olds362]

The only accurate way of calculating mileage is miles driven since last fill-up divided by amount of fuel added to fill-up again, using the auto pump shutoff as the full reference point.

[RTexasF]

Originally Posted by NickRav4

the only problem I am having in my 2006 sport is that when I am trying to figure out my gas milage i just cant go by what the tank is supposed to hold at certain lines, compared to what it is actually holding.

Fill the tank and set the trip odometer to 0
Drive the car
On the next fill up divide the gallons it took to fill up the car into the miles driven.

Example: 100 miles divided by 4.0 gallons to fill up. That equals 25MPG.

It doesn't matter if the tank holds two gallons or 200. It's simple math.

[NickRav4]

I was doing the math backwards.... i was taking the number of miles driven and just dividing it by say 8 gallons for a half tank. I will do the new way next fill up and let you guys know how it came out.

[vanib]

If you want to get really accurate, try to use the exact same pump if possible as each pump, even at the same station, can have different cut-offs. Drive until at least half the tank is used (the more the better) to have a more accurate reading.

[NickRav4]

thanks will do. right now im at about a tad less then half a tank so when i get closer to a quarter tank i will save the receipt and then do the math when i get home. hopefully my v6 is getting too bad of milage

[mrodgers]

Originally Posted by NickRav4

I was doing the math backwards.... i was taking the number of miles driven and just dividing it by say 8 gallons for a half tank. I will do the new way next fill up and let you guys know how it came out.

That's better than what I had witnessed.

I saw a girl post that her car gets worse gas mileage as the price goes up. She was calculating miles driven by $ amount paid for the gas, LOL.

342 miles / $48 put in the tank, 7.1 mpg. Not very good gas mileage, LOL.

[ravenuer]

Originally Posted by mrodgers

That's better than what I had witnessed.

I saw a girl post that her car gets worse gas mileage as the price goes up. She was calculating miles driven by $ amount paid for the gas, LOL.

342 miles / $48 put in the tank, 7.1 mpg. Not very good gas mileage, LOL.

tis a wonderful world we live in, ain't it?

[NickRav4]

filled up tonight after a quarter of a tank, 19.8 mpg for the v6 commuting to and from college for classes and work. not too bad for mostly stop and go driving