NSer

Thanks! 2006 Impreza, appox 82,000 miles....I believe the O-ring he was referring to was related to the area they worked on previously (ignition coil). He mentioned that they pulled the out the spark plugs they replaced in 2012 due to the faulty ignition coil and noticed the fluid. I did have these plugs and wires replaced in 2012 along with the ignition coil. I will try the E-85 for sure.

About 1.5 years ago my car began to skip/slip when the transmission shifted gears. This seems like a common occurrence after reading through this forum and others like it online. This did not always happen but progressively became worse and worse...brought it to Subaru and learned that the Ignition Coil was damaged along with spark plugs. I had all of this replaced (September 2012). Recently, within in the past 3 months, I have noticed similar skipping but not as intense as before. I brought it back and was told that, upon removing the spark plugs--it appeared as though there was fluid at the bottom of the cylinder. Mentioned that there may be an issue with the O ring but did not seem to think that it needed to be replaced/fixed immediately, my main concern is that I may be damaging my car by not replacing the o ring now. I have a 12 hour trip in the near future. Thanks in advance for any thoughts.