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Old 06-05-2012, 10:55 PM   #1
Scooby Newbie
Member#: 322340
Join Date: Jun 2012
Default 2006 impreza 2.5i sohc p0304

i'm driving across country in my 2006 impreza 2.5 sohc. it has had a small oil leak in the head gasket for quite some time,now. However, I have made it from CT, all the way to WY. I just got in my car to pick up some oil from Walmart; on the return trip from Walmart to the hotel my car started sputtering and skipping at idle. It then produced the code P0304, which is for a misfire on cylinder 4. In researching this I've read it could be any of the following: valve cover gasket; spark plug grommet; bad gas; and the difference in altitude. Do you think it's safe to continue to drive the car or should I go to the stealership locate 45 miles away from my hotel my hotel I'm currently at. I put some prestone fuel injector cleaner with the recommendation of an advance auto employee in WY, but I'm not too confident with him saying, "Just run this on a full tank of gas, and the next time you fill up put another bottle of prestone in the tank. This will clean all the oil out of the cylinder head." Please advise ASAP!

Thanks in advance,

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