unitronic and fuel mileage?

[darkred11]

does a unitronic chip help your fuel mileage? i read claims from some people it doesnt but im assuming its cause they have a heavier after the chip. i get about 900km to 51 liters right now and drive around at 110kmh. wondering with chip if ill get an extra 100-200km per tank.
does the chip add any extra wear on the turbo etc. i think it raises the boost a bit but not entirely sure?
thanks guys new to the board and just got my 2006 jetta TDI and this car is tons of fun

[golf.angers]

i would love to know the answer to this question too ccause i was wondering the same thing

[JSWTDI09]

I don't know about Unitronic specifically, but most stage one tunes can improve mileage slightly. However, they often do not because it is often difficult to avoid using all of the extra power they provide. If you drive the car very conservatively, a tune can make the engine more efficient (hence better mileage). More power requires more fuel. Therefore, if you enjoy the extra power very often, a tune can actually mean less fuel mileage.

Like all mileage - the way you drive the car has a greater effect than any modification you can make. Better mileage is not usually the reason why a person gets a tune. It is probably possible to create a tune just for mileage, but not many people would pay extra for it. Unless you can consistently keep your right foot off of the accelerator pedal, the best mileage tune is probably free (the stock one).

Have Fun!

Don

[Greekin]

Later this summer when I can get a few extra bucks I plan on getting stage one plus... I will let you guys know.