[shantiwitt]

Hi all,
I have been shopping for some new low rolling resistance tires for my 01 Jetta TDI and I have decided to go with the Bridgestone Ecopia EP422 Plus. Now it comes down to what size to buy. Now stock my Jetta has 195/65r15 and I want to be more efficient than that so I want to go narrower and taller. Well, tirerack.com has options that are narrower (175/65r15) and taller (205/70r15) but no options that are taller AND narrower... So here is my question: Should I go with the taller tires that will lower my cruising RPMs or should I go with the narrower tires that will have a lower rolling resistance? For comparrison the tread width on the 205/70r15 is 5.9" and 20lbs per tire and the tread width of the 175/65r15 is 5.1" and 17lbs per tire.
Any help is appreciated, thanks in advance!