jensen0510 Posted August 19, 2010 Share Posted August 19, 2010 I never thought I would get 21 mpg out of a car with 240K miles on the tranny and 115K on the engine!!!! Wooohooo All in town short trips. With the gas guage broken, I was afraid to go too much farther, so I filled it up today. I could have gone another 100 miles Quote Link to comment Share on other sites More sharing options...
GeneralDisorder Posted August 19, 2010 Share Posted August 19, 2010 Frankly it should be closer to 25 unless it's a turbo. Maybe you are due for an O2 sensor, etc? GD Quote Link to comment Share on other sites More sharing options...
Olnick Posted August 19, 2010 Share Posted August 19, 2010 Congrats, jensen! I take it the car is performing reasonably well for you--you deserve it after all you went through! As GD said, with a bit of "tuneup" and perhaps a new O2 sensor you should be able to do even better than 21mpg. Good luck and let us know how it goes. Quote Link to comment Share on other sites More sharing options...
Suzam Posted August 19, 2010 Share Posted August 19, 2010 @jenson0510 that's pretty good for a high mileage Subie! 21mpg for short "cold engine" trips is about right. I have a 97 2.2 that gets around 23 and a 01 2.5 that gets 21 if we drive it around town. If we go father they both jump up to 23-25. Highway gets better than that 2.5 = 28mpg & 2.2 = 30mpg. If we go on looooong trips (400-500 mile in one shot) 2.5 = 29-30 & 2.2 jumps to 32+mpg. Quote Link to comment Share on other sites More sharing options...
johnceggleston Posted August 19, 2010 Share Posted August 19, 2010 21mpg for short "cold engine" trips is about right. I have a 97 2.2 that gets around 23 and a 01 2.5 that gets 21 if we drive it around town. If we go father they both jump up to 23-25. Highway gets better than that 2.5 = 28mpg & 2.2 = 30mpg. If we go on looooong trips (400-500 mile in one shot) 2.5 = 29-30 & 2.2 jumps to 32+mpg. crap, i've got to tune up my car. i can't get 25 on the hiway in my 97 outback. i have no idea what my wife's 97 gt gets. Quote Link to comment Share on other sites More sharing options...
GeneralDisorder Posted August 19, 2010 Share Posted August 19, 2010 Jeez! You guys need to check your sensors and tuneup stuff. My last DD EJ (besides my '91 Turbo ) was a '94 GT wagon and got 25 to 27 regularly and 30.5 on freeway trips. My '83 hatch gets 27 around town and 31+ on the freeway and it's got over 260k on it, a low comp. cylinder, a tuned Weber, and I drive it like I stole it . Other than my EJ22T Legacy, I've never had a Subaru that couldn't get at least 25 in town and over 30 on the freeway. My EJ22T get's 16 and runs premium..... and I wouldn't have it any other way GD Quote Link to comment Share on other sites More sharing options...
jensen0510 Posted August 19, 2010 Author Share Posted August 19, 2010 I thought I remembered you guys posting higher mileage on some other posts I read. I do have a check engine light on, I read the code, but I think it was the evap sensor under the manifold. I have the one off the other engine I just haven't swapped it out yet to see if that clears it. You are probably right about the O2 sensor. I think I burned about a gallon of coolant out of the exhaust leftover from the old engine. Probably not good for the O2 Where's the cheapest place to get an O2 from and is there more than one? Thanks Quote Link to comment Share on other sites More sharing options...
GeneralDisorder Posted August 19, 2010 Share Posted August 19, 2010 (edited) Depends on the year - in any case the front O2 (before the cat) is the only one that matters for mixture control and thus fuel mileage. I use the NTK brand one's (made by NGK spark plugs) and they run about $75 for the EJ front O2's. Being that the car has 240k on it and the exhaust sounds original from what you are saying - if it hasn't been done in the last 100k then it probably needs a new one even without a code - they get slow to respond and cause mixture issues which reduces fuel economy. Tire pressure, etc is also a factor. And a roof rack will grab about 2 MPG on the freeway..... GD Edited August 19, 2010 by GeneralDisorder Quote Link to comment Share on other sites More sharing options...
jensen0510 Posted August 19, 2010 Author Share Posted August 19, 2010 no roof rack, and the tire pressure is good. I'm betting the O2 is a good bet. I'll check around and see what I can get in this big town Quote Link to comment Share on other sites More sharing options...
Olnick Posted August 19, 2010 Share Posted August 19, 2010 Check Amazon.com, they had Bosch for older Subarus for $40-ish with free shipping no less! They're universal type but not too difficult to wire up with the included connector block. Worked beautifully on my son's '92 Legacy. Quote Link to comment Share on other sites More sharing options...
rainman19154 Posted August 20, 2010 Share Posted August 20, 2010 My 95 Lego gets 20 ish around town, high density stop n go. I recently scored in at 24 mpg for a 400 mile road trip, 70 mph and ac most of the way. Quote Link to comment Share on other sites More sharing options...
987687 Posted August 20, 2010 Share Posted August 20, 2010 My '96 legacy can get around 32 on the highway on long trips with AC running the whole way. It's a great little car! Only 115k though, so not exactly high mileage. Quote Link to comment Share on other sites More sharing options...
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