[s-cars] S4 MPG

[Mark Strangways]

Lots of things to check.
Tire pressure... lots of people (not on this list though) have no idea how much tire pressure can kill your economy.
Oxygen sensor could be old and need a replacement.
Coolant temp sensor or thermostat could be bad and reporting low engine temp, resulting in richer mixtures.
Kinda hard to advise too much as a little less than 20 MPG isn't that far off normal (I suppose)

Anyways should give you something to do for 20 minutes or so

Mark
  ----- Original Message ----- 
  From: George Verbryck 
  To: Mark Strangways 
  Sent: Tuesday, November 13, 2007 11:14 PM
  Subject: Re: [s-cars] S4 MPG


  Lately I have been doing mostly highway car is stock and when I drove it home I got 375+ miles per tank now I am getting a little less than 20mpg. Thanks for the reply George

  Mark Strangways <StrangConst at rogers.com> wrote:
    George,
    I am afraid your gonna have to quantify the "poor" mileage you have said.
    I find I get rather crappy fuel economy, but I have a 450 HP big turbo 
    engine that I drive only rarely. So when I actually drive it, I am usually 
    into the throttle rather good. Do you drive lots of city ? City can be hard 
    on mileage in these cars simply because they like to go, and most of us like 
    to let them go.
    So, be specific as to what mileage you are getting, and when / where it is 
    that your getting that mileage.

    Mark
    ----- Original Message ----- 
    From: "George Verbryck" 
    To: 
    Sent: Tuesday, November 13, 2007 10:11 PM
    Subject: [s-cars] S4 MPG


    >I have had my S4 for about six months now and I am enjoying it , I came 
    >form a V8 so it is quite different and I have a few questions which I 
    >could not find answers to in the archive. First I have changed the plugs 
    >and air ,fuel filter but my mileage continues to be poor at least compared 
    >to what I got driving the car home. What kind of mileage should I expect ? 
    >Is there anything else I am missing which could adversely affect my MPG? I 
    >live in California and I just passed smog with really good emissions test 
    >so... not sure what to do next. Second the car since I got it has become 
    >very sloppy in the front end it now has 123,000 miles, What all should be 
    >replaced in the front end ,control arms ,sway bar bushings, tie rods 
    >anything else? I will replace the struts at the same time any tips? My last 
    >question is what are the differences between the quattro system in the S4 
    >and the V8. Many Thanks George
    >
    >
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