i have a 2005x. i travel between NY and NM, spending most of the time in NM though. i got my car osiris tuned in NM, and it ran great. however, when i got back to NY recently, i noticed that im getting terrible fuel economy ( driving reallly smoothly, no hard starts, shift at like 3500 rpm im averaging under 14 mpg)
last time i changed my oil, under 4 quarts came out, even though i put 5 in each time. i was also told the other day i have blueish smoke comming out of my exhaust. (MR reasonated TP's and HKS axleback)
on a side note, i have a scantool, and plugged it in while my friend was driving. according to it, no matter what i do my TP will only open to 80%.

im at 66,666 miles as of last night, so im pretty sure any warranty is gone as of now. anyone have any suggestions? im due for an oil change soon, so ill see how much comes out..

thanks for any help