100CSA 2.8..... rotten gas mileage?

Sean Ford audi_99_a6q at yahoo.com
Fri Dec 17 14:46:17 EST 2004

My '92 100CS fwd 5-spd would reguarly return 20 - 22 mpg. Let's face it, 172hp
and ~200 lb/ft of torque simply isn't a lot to motivate a heavy car. The end
result is, you use the throttle more than you'd like just to get going.

I agree that 15 mpg seems a bit severe, but you also have to keep in mind that
you're driving the absolute pig of the C4 family. 

If your intent is to increase your fuel economy (and who doesn't want that at
$2+ per gallon), then you have some options:

replace oxygen sensors (you should only have 2)
make sure your air filter is clean
make sure that your exhaust flow is correct, i.e., no blocked cats.
clean or replace the MAF
make sure your coolant temp sensor is working correctly.

--- mwvogt at mindspring.com wrote:

> Friends,
> Have always been a 4 or 5 banger and this "new to me" '94 2.8 V6 has me
> wanting to pull one of the cylinders out.
> What's the story? My 200TQA did better than this and more peppy before it
> even started to spool-up. I swear I was over 22mpg on average. I looked to
> find the curb weight of the '94 100CS Avant and believe it or not it is
> 300lbs. or so heavier than my '89 200TQA was. But that shouldn't explain why
> I'm lucky to get 15mpg on average with only 120K on the clock. 
> Any thoughts?
> Thanks!
> Mark Vogt
> Exeter, NH
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Sean [1999 A6 2.8q]

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