DSG: "D" or Shift mode?

Any feedback on which mode squeezes a few extra MPG's out of the DSG?

Drive
Or
Shift mode

Still can't break the 700 mile mark...

Just plain drive D. S is not for shift it is sport mode and will hold lower gears longer and use more fuel. Also keep your right foot out of it! Maybe you will make the 800 mile mark. Much of that has to do with how you drive............aggressive or relaxed.

Not the s mode,

Using the + - shift mode to change gears faster...

Drive will give you the best fuel economy. 700 mile tanks isn't bad for 70+ MPH driving.

i almost never kick it over into the manual shift mode. And I don't use the Sport mode ever either. Whenever I accidentally put it into S mode, and I hear my car revving up, I mistakenly think it's broken.

I slide over to manual mode frequently to hold a lower gear than I want. Like accelerating to 40mph in D, then slide over when in 5th gear. I don't usually want 6th gear at 40mph like D mode prefers. Has nothing to do with fuel economy.

700 miles at 40mpg is 17.5 gallons used. You have had a few tanks that you could have made it already. Besides special trips, you fill up about every 2 weeks and are spending $120 a month on fuel. What if you were able to save another $10 a month while getting 45mpg? Bah, I just drive to enjoy it. Changing my driving style to save $20 a month is not worth my pleasure.

I haven't tested it RE mileage, but I would agree that generally the computer will do better than me. I shift manually for the hills. The computer wants to upshift me to 4th going up a hill at 25 or 30. Similarly, down hill I often shift manually to get the braking. It will have me in 5th or 6th going down hill at 35 & there's no engine braking.

Thanks for all the replies

After i installed my gli steering wheel with shift paddle i have seen more mpg. I dont use to down shift just to shift gear +. My shift point is 1800 rpms.

I haven't found the Tiptronic gate or the Sport ("S") positions to be all that useful. I will slide the lever over to the right to prevent downshifts when I'm cruising, especially with hills. This engine has plenty of guts (helped by the turbo, of course) to power our car with a heavy load right up the 4-mile 6% grade going up the Cumberland Plateau at Monteagle. Also very handy on two-lane roads with lots of quick up-and-down grades. No loss of speed, never a downshift.
Sport may be useful to someone, but not to us.

On our car, in D mode, at 5th gear, 1,200 rpm, flat surface, the DSG will not downshift during light acceleration and engine will lug violently, when temperatures is around 10-15 C. The DSG needs even more accelerator input before it will downshift.

(In these situations, cars ahead were accelerating so slowly that increasing throttle to cause a downshift is not possible).