Daily gas mileage blab thread

[Fat Charlie]

I'm halfway through my most amazing tank.

On the way in this morning I hit 289.8 miles with 289.8 DTE and 5.05 gallons remaining (of the 10.1 gallons that I told the UG I have).

It was a beautiful weekend. I had to take the little guy to his baseball playoffs 15 miles away, and got 81 mpg on the way out. We had errands on the way home but still got in the 60s. He had a second game later in the day- the day was warmer and the car was already warmed up so I got 87 on the way there!

Regular commuting isn't going to keep this up, but halfway through the tank I'm sooo close to doubling EPA!

[Daox]

Woohoo, awesome!

I had a really good commute in today too. I was at 74 mpg myself in the Metro. My tank is only at 54 though. I just filled up late last week, and then had to do some higher speed driving which isn't the Metro's forte.

[Fat Charlie]

Yeah, I had the tank average up to 60, but it's down to 57.4. Maybe I'll get lucky and ahve to take my daughter to the pool tonight. That's always good for numbers!

[Fat Charlie]

Pool help. A lot.

The tank was down to 56.4 when I got home but on the way to the pool I got 82.1, bringing the tank average up to 57.8. On the way back I "only" got 60.4, bringing it up to 57.9. On the way in this morning I got 62.3, taking it to 58.1.

If I take this tank all the way through to tomorrow night I can:
A) Run the tank as close to its theoretical finish as is practical.
B) Get the same pump as my last two fills.
C) Get a personal best on distance and mpg.
D) Do a lot of walking if something's slightly off.

The UG says 58.1, the car says 56.6. Identical for all practical purposes, except for that niggly bit about walking- either alongside two little kids or while they're waiting for me to finish walking and pick them up. I ought to be at ~560 miles tomorrow night, so if I can maintain this average and the car is completely accurate then I should still have half a gallon in the tank when I get to the pump tomorrow night.

Should.

Except that when you're in record territory, hoping the numbers are right is risky even with a reserve... And the homeward leg is the uphill leg... And there are lots of hills even aside from the overall elevation change. I think what I'm gong to do is get my 1 gallon gas can out of the shed tonight and fill it with exactly one gallon tomorrow morning. If all goes well I won't have to touch that gas until I put it in my lawnmower on Saturday. Worst case, I'll be able to accurately measure my overall fill tomorrow night.

Wish me luck.

[Fat Charlie]

I pulled it off with a New Personal Record!

575.9 miles at 56 mpg- and I didn't have to touch my emergency gallon, only pumping 10.284 gallons. It was at the same pump as my last two fills, making the numbers feel even better.

Where the numbers were inaccurate, I'm okay with it:
The UG said 57.7 mpg, the car said 56.3 mpg and the pump said 55.999 mpg.
So while the UG thought I used 9.98 gallons,the pump said 10.284. A difference of less than a third of a gallon over the course of ten gallons is still pretty good- only 3% off despite all the slop from turning it on and off so many times over the course of a week. Less than a third of a gallon over 575 miles makes it sound even closer.

And now thanks to Daox and his 3D printer, I'm going to drastically cut down on that slop, keep the instruments awake for every turn of the wheels and boldly EOC where I've never bothered to EOC before: I hacked my kill switch together over the last couple of days and hope to do a rough install this afternoon.

I think I'm going to be giggling in the car even more than I was right after I did my grille block.

[320touring]

First tank in today on the new to me Octavia- 66.92 MPG imperial (55.7MPG US)

none too shabby as a start point

[user removed]

Short trip to subway today. 5 miles round trip. Did a few EOCs and managed to pull 54.4 (indicated) mpg. First time the car moved today.

regards
mech

[320touring]

Just filled up the octy and very pleased with the below!

On the run home I took it very easy- and had this as the shown average (based on the computer being 10% optimistic, I reckon a genuine 80mpg (66.61mpg US) over 17 miles.)

[dirtydave]

what uses less fuel?
5.4 miles at 33mpg or 3.2 miles at 21mpg?

[Fat Charlie]

3.2 x 6.564 = 21, so you're using a little under 1/6 gallon.
5.4 x 6.111 = 33, so you're still using a little under 1/6 gallon, but a little more than the shorter run with lower FE.