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Yeah, the new ECU and TCU tune are turning out to kill our mileage more than advertised. I'm about the same way mileage wise, driving from Destin to Orlando. However I might have a rate of travel averaging 80-90mph... So its a fair trade in my mind.
We drive Birmingham to Fort Worth fairly frequently. Cruise set to 79 mph. 675 miles. Ours consistently gets 27.5 mpg on this run. If I slowed up just a bit I believe I could make it without a fuel stop. It’s not very different than was our 2011 TDI without the fix.
i think everyone can agree that the fixed diesels suck. The new Q7 gassers would get a solid 26mpg in those same conditions, if not more
I don’t really agree with that. Our 2015 just today got 30.1 mpg from Houston to Fort Worth. What I do see is that the newer gasoline 3.0 with the supercharger clutch and the lighter chassis with less frontal area has closed the mileage gap a lot. Those of us who tow still need the torque though.
This taken after 411 mile segment I 20 Louisiana to Alabama today. Average speed 71 mph. Filled tank at end. 13.9 gal. 29.5 mpg calculated. Distance to empty after fillup- 725 miles!
Get your TCU tuned back to pre-fix parameters, you'll be much happier.
Concerned about warranty? Get a spare off eBay Germany (I paid $225 shipped) and get it tuned to pre-fix then install it, keep your original in case it needs to go in to the dealer.
Write to yrk2.7t@curbside for info on pre-fix flashes. Stand up guy right there!
11-28-2018, 05:22 AM
Observation of TDI fuel economy
