A6 fuel mileage

[ckrug7380 at comcast.net]

I recently made a one day, 600 mile, almost entirely interstate drive in my '89 200Q.  At the beginning of the trip, I filled up  the tank and reset the computer.  When finished, it read 29.0 mpg.    I do admit that it gets nowhere near this good in city driving, but I tend to use the boost a little more than I should.  I average about 18 around town.  Still,  not bad for an 18 year old, 300,000+ (I'm guessing, odo stopped at 250k a few years ago) mile car.     The first thing to check if you suspect the mileage isn't as good as it should be is ignition.  I was getting about 14mpg city, replaced the cap and rotor that were pitted pretty badly, found the #5 spark plug badly fouled, cleaned it and replaced the plug wire on that cylinder, and it jumped up 4 mpg overnight.  More boost now too.  Love it.

Calvin K.