Im going to try and do a full OLM change with my Accord. I have heard and read many recommendations to change out the PCV valve on the 2.4 because the "spring" breaks. I honestly dont know the full extent of what the PCV does, do I need to change it? My driving style is 95% 1 miles trips so I would like to have the oil as clean as possible while I do this OLM oil change. Is it worth changing or just keep driving? Also, about how much would this be at the dealer. Im at 114,500 miles now. Is PP 0w20 a good oil to do the OLM change with? It calls for 5w20 but Honda back spec'd 0w20 for my car. Running PP 0w20 and A02 filter.