Horrible MPG

[Phajjar96]

Hi guys, I joined a while back but haven't had a ton of extra time to check in due to working almost full time and attending college, etc. I don't expect anyone to help me since I've had pretty much no activity on here but it would be much appreciated. So ever since I purchased my 2006 9-5 over a year ago, I've been getting horrible gas mileage. The car has just hit 73k miles and I've tried a bunch of things to improve my MPG's. Just to list some of the things I've done:
-Transmission Flush
-Cleaned Throttle Body/MAF Sensor
-Replaced Air Filter
-New OEM DIC & Plugs (Correct NGKs & Gap)
-Regular Mobil 1 Oil Changes
-Few tanks of Seafoam
-Smoke test to check for any vacuum line leaks
-Probably more I'm forgetting to mention

But anyways, I've been driving like an old lady and with the AC always off. I drive 80% highway 20% city and struggle to get 22mpg. Does anyone have any input? I have access to a Tech2 if that can help me at all. Thanks!

[nordwulf]

I am getting about 27 mpg on average when driving in town and 55mph roads.

Are you using premium fuel (91+)? Fuel mileage will be a bit worse when you use regular but still should be better than 22mpg.

[Phajjar96]

I'm running 93 Shell V-Power

[southsaab]

You may be getting better mileage than you think. Assuming you're using SID for info, check mileage between fill ups by dividing miles by gallons needed.

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[goldngoose]

22 is a bit low mate. Tyre pressures OK? Wheel alignment OK?

[southsaab]

I checked my SID mpg, and i currently show 23.4 with a mix of city/hwy. SID probably averages everything. I know on long hwy trips I get over 30mpg fwiw.

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[RDISaab]

I'm a new Saab owner currently bringing my '08 9-5 up to speed. My car had a malfunctioning coolant thermostat that intermittently threw a code. The needle of the temperature gauge would sit a little below 9 o'clock. My car was getting about 22 mpg until I replaced the thermostat when the mileage jumped to about 27 mpg. Something to think about.

[Kazamario]

I get 19 mpg in my 2004 9-5 Aero, but she's sitting at 220k, is that normal for high mileage?

[southsaab]

Maybe, if that's combined. Reset the SID mpg before a trip, and see what you get. I have had as low as 16mpg when I commuted in stop and go traffic.

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[swisssaabist]

for me I've regurarly 22 MPG on a mixed trip (2lt 110 KW 150 HP ) on highway with speed regulator get 27 at the best. for that moment i have a swapping engine with a P1110 code (turbo valve issue ) lead to have 23 hope when my vacuum valves are fixed it going better.