Chris, no Audi TDI engines in the US, unfortunately......
BRH, I have run my 1.8T on mid-grade a couple of times. For a while,
when prices were over $3 I would run 2 tanks of mid-grade then a tank
of premium. Frankly, I did not notice any difference in either gas
mileage or performance. However, 90% of my driving is in-town, so it's
not like I'm winding it out at all..... I haven't tried a regular grade
in it, and now that prices are back to around $2/gallon for premium, I
probably won't. I've been doing every third tank of mid-grade.
On the A3 - I haven't driven it but took an extensive look on the
showroom floor a couple weeks back. Personally, I would wait until I
could get the 2.0T with quattro and 6-speed (some piont next year,
perhaps?). It's definitely a little tighter than my A4 inside, but I
like the style and interior.
'04 A4 1.8Tq MT-6
Central NJ USA