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Air filter replaced at oil change, Oilstop (a drive in oil change place similar to jiffy lube). Why the cabin filter out of curiosity ?
Tested the 12v with the signals test in the car 12.4 under load and 14.4 charging oil level is about quarter quart high going off the numbers...
I'm having a similar issue,(2004 with about 77000) After replacing the 12v battery and having the oil changed i noticed a significant drop in MPG...