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2000 Forester S AT
972 Posts
I run 36/34 PSI as well, unless I'm towing, which is 36/36. I get ~22.x MPG mixed, or ~26 highway.

Since it is new to you, make sure all the regular maintenance has been done, oil, air filter, plugs, upper intake cleaning (search seafoam treatment), etc. When I first got mine, I was lucky to get 17.5 MPG, but the above, plus O2 sensors, (P0420 CEL), etc got me to the 22.x mixed. Now I just have to keep out of the loud pedal and I might see 23 mixed. ;)

Do you know when the timing belt was replaced? How many miles does it have?
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