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Your computer shows 13.7 mi. driven in 1.1 hrs for a total of 13 miles.
So, now you know your car burns about 2 gal. of fuel when just sitting there idling . Lol
Take it on the highway for 20 miles and THEN see what you get .
I now have 4680 mi. on my 997 S and it shows 19.7 mpg.avg. ( which is certainly not spectacular ) I drive about 30% highway and the rest is normal road conditions with traffic lights etc. but not the HEAVY city traffic like you apparently have .
MJones: >23mpg! Not bad!!
I'm not sure - perhaps I don't drive in a very conservative manner - but I'm lucky if I can get over 20 - 22 mpg (that too only if I am consistantly on the freeway). My average since 7/05 is 18 mpg.
Do you have a favorite gas station? I'm in the Bay Area - so probably have similar choices.
I am up to 450 miles, and am running around 16 mpg - but I am pretty much either accelerating or coasting. Makes for a somewhat jerky ride but breaks in the motor well.
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