Got MY first 700 mile tank. 700.4 actually

PlaneJob · Aug 11, 2011

I drove out of Dallas, TX and stopped to fill up on my way to Houston, TX. From Houston I went to San Antonio, and then back to Dallas.
I averaged 47.7mpg over the 700.4 miles. Interestingly, I found I got the best fuel economy at about 69mph in clean air - that's right on 2000rpm on the gauge, maybe a little different if you do the math.
I'm thrilled.

wutbürger · Aug 12, 2011

You must be taking 30 minutes to fill up 14.5 gallons of fuel hahaha I never have the patience. Most I ever seem to get is 13.5 or so by "slowly" filling up. I'm hoping to bust the 700 mile tank in a few days. I'm at 353 miles and well above the half mark on the gauge thanks to no city driving this week along with gorgeous, 65 degree mornings here in St. Louis for a change.

I agree, I find the best economy to be 65-70mph- right in the sweet spot for torque on the 6M

Polak · Aug 12, 2011

PlaneJob said:
I drove out of Dallas, TX and stopped to fill up on my way to Houston, TX. From Houston I went to San Antonio, and then back to Dallas.
I averaged 47.7mpg over the 700.4 miles. Interestingly, I found I got the best fuel economy at about 69mph in clean air - that's right on 2000rpm on the gauge, maybe a little different if you do the math.
I'm thrilled.

14.68 Gallons. You must have been running on fumes.

sgoldste01 · Aug 12, 2011

If the car has a 14.5 gallon tank, then the question is how much more fuel can the filler neck hold? I know I've read this in other threads, but can't remember the quantity. Is it 0.5 gallons, or maybe 0.75 gallons?

Seacoaster · Aug 15, 2011

I pretty consistently put in 14.5 gallons, have done 14.75 once, the mfi was on 0 for 5+- miles.

ToeBall · Aug 15, 2011

My car had a pretty good day.

That wasn't hypermiling or any special driving. 70-75 mph, also around 1900-2000 RPMs, for 30 miles on the freeway in lightish traffic.

740GLE · Aug 16, 2011

i got 41mpg on the MFD doing 85-90 last friday on a 70 mile trip, i was happy too!

corvettecrazy · Aug 16, 2011

Most I ever put in was 14.9...

...for 597.7 miles. I did make the 600 club on the return trip with 13.7 gallons though.

PlaneJob · Oct 12, 2011

Knocked out a 718 mile tank yesterday... averaged 50.3 MPG for the tank!! average speed was 61mph according to the in dash, so... it was all highway, but still. I had the cruise set at 70 most of the time.

dsldubb · Oct 13, 2011

Polak said:
14.68 Gallons. You must have been running on fumes.

Reminds me of the Top Gear episode where Jeremy attempts an 800 mile tank with the Audi diesel.

He gets to where the MFD says 0 miles, needle laying on the floor, fuel pump loudly whirring away, and then he says: "I don't know if the engineers at Audi know this.. But they have developed a car that runs on air."

Ha ha.

740GLE · Oct 13, 2011

This past weekend, filled up till I saw foam, clicked in a bit more then took off as a line was forming behind me. Drove 496 miles between Saturday and Tuesday morning were I squeezed in 9.54 gallons to actually brim the tank. 51+mpg!

The MFD said I could have gone another 200 miles. My average speed was around 50 mph with 50% highway at 70mph, and then the other 50% was between 45 and 55 on the back roads.

maxedtdi · Oct 13, 2011

Are the jetta tanks bigger than the golf tanks?

My car was saying 10 miles to empty etc and I put in 13.9 gallons. The manual lists the tank as 14.5 gallons.

tomc585 · Oct 13, 2011

I must be doing something wrong

740GLE · Oct 13, 2011

Same, mfd for DTE isn't science. Make sure you fill till you see soil fuel, not till it clicks.

tomc585 · Oct 13, 2011

PlaneJob said:
Interestingly, I found I got the best fuel economy at about 69mph in clean air - that's right on 2000rpm on the gauge

Just for giggles I checked my mph with DSG against your 6M @2000rpm. I'm only at 62.7mph. Thought they'd be a little closer than that. But @2000rpm it does seem to do better like you state.

ajkreider · Oct 13, 2011

The manual (page 237 in the 2011 edition) says that there is a 7 liter reserve in addition to the 14.5 gallons.

PlaneCrazy · Oct 13, 2011

My record is 746 miles (1194 km).

Here is a pic from the day I did it. 10 km remaining to empty

And here's my best ever fuel consumption on my morning commute earlier the same day, 59 mpg (fuel light not on yet at 1128 km):

elverde · Oct 14, 2011

I have a really hard time topping off...I don't know what I'm doing wrong, so any tips are appreciated. I'm in CA if that's any help.

Once it's "full" according to the pump...I get a click every freaking second and have to resqueeze...sometimes launching diesel back at me as some form of ridiculous riccochet. I usually give up after a few clicks.

Anywho...I'm on pace for about 690 miles on this tank so far...it's going to be close. I think if I can fill it up all the way, 700 might come easy.

I do all highway during the week...usually 50 mpg to work and 42 or so on the way home (uphill).

740GLE · Oct 14, 2011

the fill up i use had a pretty worn pump nozel, and I feather the fuel in at an almost trickle pace as the same speed the foam disapears.
Where I've tried using newer pump nozels and there seems to be no in between and feathering stinks.

PlaneJob · Oct 14, 2011

I never "top off" the tank. I put the pump on the slowest setting, and wait until it clicks off.

I am of the opinion that XPD must have an anti foaming characteristic, if not a specific anti-foaming component.

PlaneJob · Oct 14, 2011

maxedtdi said:
Are the jetta tanks bigger than the golf tanks?

My car was saying 10 miles to empty etc and I put in 13.9 gallons. The manual lists the tank as 14.5 gallons.

The "miles to empty" is a computation that takes into account your recent driving. If you just shot off of a traffic light, the miles to empty will drop sharply. Likewise, if you have been driving in the city and then go to steady highway driving the 'miles to empty' will climb.

13.9 gallons with 10 miles to empty means you were driving it pretty hard - how many miles did you get on that tank?

natrab · Oct 14, 2011

I must have a really heavy foot, because my mileage has never come close to what some of you have.

Are these A6s getting better mileage than the A5s?

ajkreider · Oct 15, 2011

Took my "miles to empty" past zero for the first time yesterday for about 10 miles. Bit of an experiment. Wanted that first 600 mile tank (612).

Filled up with some feathering, and only got 13.98 in. I'm convinced that the miles to empty is no where near the miles to empty. Maybe it's their way of getting you to avoid accessing the dirty fuel a the bottom of the tank.

tomc585 · Oct 15, 2011

ajkreider said:
Maybe it's their way of getting you to avoid accessing the dirty fuel a the bottom of the tank.

Dirty fuel? Where do you buy your fuel? lol. The miles/distance to empty is calculated based on you recent driving habit and is meant to be a reserve so has not to run out and be stranded.

I don't miss the days with my old Buick Estate Wagon, when it said "E" you were empty!

numl0ck · Oct 17, 2011

ToeBall said:
My car had a pretty good day.

That wasn't hypermiling or any special driving. 70-75 mph, also around 1900-2000 RPMs, for 30 miles on the freeway in lightish traffic.

Downpipe FTW!

holychicken · Oct 17, 2011

Hi. New driver here, have had my car for a couple of weeks.

I refueled my first tank right as it entered the red area.

I assume that if you all are filling over 14 gallons that you take it way into the red? Is this not a big deal? How many gallons are left right when it enters the red part of the meter?

maxedtdi · Oct 17, 2011

PlaneJob said:
The "miles to empty" is a computation that takes into account your recent driving. If you just shot off of a traffic light, the miles to empty will drop sharply. Likewise, if you have been driving in the city and then go to steady highway driving the 'miles to empty' will climb.

13.9 gallons with 10 miles to empty means you were driving it pretty hard - how many miles did you get on that tank?

450 miles to that tank.

740GLE · Oct 17, 2011

The low fuel light is suposed to come one on when it thinks it has two gallons left, but I normaly see it come one when there is 50miles till empty. How much you want to trust the computer is up to you.

PlaneJob · Oct 17, 2011

maxedtdi said:
450 miles to that tank.

Sounds like it was doing its job correctly. 450 miles/tank is pretty hard driving.

dmarsingill · Oct 17, 2011

PlaneJob said:
Sounds like it was doing its job correctly. 450 miles/tank is pretty hard driving.

That is what we are getting also. Not hard driving, just stop and go.

Donald

Got MY first 700 mile tank. 700.4 actually

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