Ok, Have a 08 Saturn Outlook with 43k on it.
The problem is when i let the car sit say overnight when i start it for the first time it has i would call a rough idle for 3-5 sec for the engine smooths out. No issues while driving and doesnt do it after the car is warm.
I usually only use shell gas(discount card) so i dont think it is a clogged injector it something.
Now i believe it * MAY be the oil. I have only every used Mobil 1 full syn in the car going back and forth between regular full and EP if it was on sale. Also have only ever used mobil 1 filters. Oil is changed every 6-9k depending on the indicator.
I have really only every noticed this while i have the M1EP in there and not regular M1 so i am wondering if it is something with the EP. I purchased some PP when it was on sale and will switch to that in about 3-5k. Just wondering if anyone else has some thoughts
The problem is when i let the car sit say overnight when i start it for the first time it has i would call a rough idle for 3-5 sec for the engine smooths out. No issues while driving and doesnt do it after the car is warm.
I usually only use shell gas(discount card) so i dont think it is a clogged injector it something.
Now i believe it * MAY be the oil. I have only every used Mobil 1 full syn in the car going back and forth between regular full and EP if it was on sale. Also have only ever used mobil 1 filters. Oil is changed every 6-9k depending on the indicator.
I have really only every noticed this while i have the M1EP in there and not regular M1 so i am wondering if it is something with the EP. I purchased some PP when it was on sale and will switch to that in about 3-5k. Just wondering if anyone else has some thoughts