Where is the oil filter in an 97 sti - 1997 Subaru Impreza

Idont know. But u can call autozone and they will tell u over th ph.

Maybe, maybe not, It's most likely a bad rear seal or worn main bearings but check the oil filter just to be safe. Sometimes things go wrong when changing the oil filter that can cause similar symptoms.
1) old gasket left behind.
2) cross threaded filter.
3) loose filter.
4) damage gasket or defective new filter.

i will recommend cleaning the sensor. there is a product disigned to clean it. it's a spray, obviously enough called maf sensor cleaner. your sensor might be dirty, degrading operation, especially if your using an aftermarket air filter like k&n which uses oil to filter the air.

Could be clogged injectors, bad fuel filter or bad fuel pump. Do you hear a hissing sound when accelerating?

remove pan at bottom of trans drain oil, replace filter

If you go to a reputable motor factor,
you can only be sold the correct filter for the civic.
As there are soo many variables in engine type, it's almost impossible to tell, oil volume, or which type filter.
However, I will say, be sure that you don't mix semi-synthetic oil, and mineral oil.
Oil changes should be undertaken every 30,000 miles, (unless under extra work load, (in which case, slightly more regularly))

Otherwise, 10/40 or 15/40 grade oil, is perfectly fine.
The trick to not overfilling the oil, is simply just to take your time, clean the dip stick and retry, until you have the correct reading.

Please don't forget to rate:)

All fixed now ! Problem was oil leaking from bell housing when garage took everything apart and inspected the rear main & torque converter seals. Found also split boot on RH inner CV joint. All in all, a lot of time spent but all now ok.

Thanx Jo.

Both are under the hood and easy to get to. As for the Air Filter nobody beats K&N they are simply the best. Any fuel filter thats the right one will do.

can any1 help me as my interior light not workin with doors when i use door settings get nothing till i close the doors and it comes on dull

i have an 05 sti. its the same motor as the 09. you definitley want to use a high quality full synthetic oil 5w-30. check the level often because it is normal for this car to burn a little oil do to the turbo. especially if you start making performance mods.