Hi guys my 06 Forester STi is using ALOT of oil - about 3 litres in 1500 miles. I decided to have the compression tested to see if I had any worn piston rings which would answer the oil consumption question. I've just got the results.... 115,114,113,117psi. The guy said these are the most consistent results he's seen in a long while but I'm not sure if these are correct or by some coincedense these are all equally low...anyone got any idea as what these are supposed to be for an import?? Or any ideas as to where all my oil is going! Cheers guys