The Fuel Economy/Mileage Thread

[veeman]

This is probably a really stupid question but how do you know what mpg you are getting unless you run your tank completely dry.  If you have let's say a 15 gallon tank and you refill up when you're empty, you usually have a gallon left.  Are you accounting for that gallon?  Being off half a gallon is going to affect your mileage claim by a few miles/gallon.  The "miles left till empty" indicator in most cars doesn't go all the way down to below 20 miles and sometimes 30 miles in most cars.

[Eye of the Tiger]

This is probably a really stupid question but how do you know what mpg you are getting unless you run your tank completely dry.  If you have let's say a 15 gallon tank and you refill up when you're empty, you usually have a gallon left.  Are you accounting for that gallon?  Being off half a gallon is going to affect your mileage claim by a few miles/gallon.  The "miles left till empty" indicator in most cars doesn't go all the way down to below 20 miles and sometimes 30 miles in most cars.

you refill your tank and trust the meter on the pump

[veeman]

it clicked

you have to know what your tank size is.  this way, when you fill up you know what fraction of a gallon is left in your tank. 

[Eye of the Tiger]

it clicked

you have to know what your tank size is.  this way, when you fill up you know what fraction of a gallon is left in your tank.

ignore the sign that says "do not top off"
top it off slowly until the fuel is at the top of the filler neck

[Raza]

This is probably a really stupid question but how do you know what mpg you are getting unless you run your tank completely dry.  If you have let's say a 15 gallon tank and you refill up when you're empty, you usually have a gallon left.  Are you accounting for that gallon?  Being off half a gallon is going to affect your mileage claim by a few miles/gallon.  The "miles left till empty" indicator in most cars doesn't go all the way down to below 20 miles and sometimes 30 miles in most cars.

I filled up my Passat on more than one occasion when it told me I had a 0 mile range.

All you need to do is use your trip computer and the gallon output on the pump.  Just make sure you fill up to the stop every time, no partial fill-ups.  Miles over gallons. 

I take photos of my trip odo and the fuel pump with my phone at every fill-up.

[Raza]

it clicked

you have to know what your tank size is.  this way, when you fill up you know what fraction of a gallon is left in your tank.

Wait, but you didn't burn the gallon left in your tank.  That's still there.  You just need to know what you put in and how many miles you drove since your last full fueling.

[veeman]

 

how stupid of me.

[68_427]

I always put the same amount of fuel in my car and run till the gas light comes on.

[Eye of the Tiger]

I think the Harley's fuel economy may improve with the addition of a turbocharger.

[MX793]

I think the Harley's fuel economy may improve with the addition of a turbocharger.

hissing potato?

[68_427]

My frienf is selling an hks bov that would suit the harley

[68_427]

10.7 mpg

[Cookie Monster]

[Laconian]

18.4mpg.

[2o6]

Why is my fuel economy dropping!?

[MX793]

I'm only getting 21-22 mpg in mostly suburban driving thanks to the cold weather (and winter fuel and snow tires).  On tanks where I've had some highway driving, it's maybe 25-26 mpg.

[Cookie Monster]

Balls, my dad filled up the car yesterday without telling/asking me and didn't note the mileage or gallons so there's a wasted tank...

[CALL_911]

Wow, what a fucking dick. I fucking hate it when my dad fills up my gas tank for me. Shit.

[280Z Turbo]

I think the Harley's fuel economy may improve with the addition of a turbocharger.

You need a bike that's already turbo'd:

[Eye of the Tiger]

Wow, what a fucking dick. I fucking hate it when my dad fills up my gas tank for me. Shit.

Fuck free gas. Pisses me the fuck man. Right off.

[AutobahnSHO]

I NEVER top off- I go till I hear it almost getting full and slow down then stop at the first time the gas handle pops..
Getting kinda low in the subie- 21-22mpg. Usually I got a solid 23mpg. I need to check the tires.

Got 19.5 in the sienna yesterday- mostly town driving. Way far better than most big SUVs??

[68_427]

My car rarely ever has more than 1/3 of a tank.

[Eye of the Tiger]

My car rarely ever has more than 1/3 of a tank.

ur fuel pump asplode

[AutobahnSHO]

ur fuel pump asplode

or his gas tank is ultra-clean cuz the dirt is always sucked out and burned off....   

[Cookie Monster]

Wow, what a fucking dick. I fucking hate it when my dad fills up my gas tank for me. Shit.

I'd rather pay for my own gas and actually calculate all my averages, Fuck off if you don't like it.

[CALL_911]

I'd rather pay for my own gas and actually calculate all my averages, Fuck off if you don't like it.

You're a dumbass

[68_427]

Calculating avgs gets addicting.

[SVT666]

Why is my fuel economy dropping!?

That's what happens when JW's get the gayz. 

[68_427]

or his gas tank is ultra-clean cuz the dirt is always sucked out and burned off....   

Yup.  Run to and past gas light every fuel up crew checking in.

[SVT666]

I disagree slightly, as I think going fast is, perhaps, 5% of the fun.

In every day driving accelerating hard is 90% of the fun.  Hitting a twisty two laner on a Sunday afternoon....corners are 90% of the fun.  That's why I like a car that can corner really well and has lots of balls.