Originally Posted by shangyer
I wanna do some maintenance, like replace O2 sensor, distributor rotor and cap, wires, PCV valve, and fuel filter! My friend told me I better use OEM parts, which are much more expensive than aftermarket ones. What you guys think?

For those particular item, i'd just get aftermarket. Usually when it come to water pumps, timing belts, head gaskets..etc..etc... i'd stick w/ OEM..
Bosch o2 sensor's are good and works good enough. Why spend 200-300 dollars on a OEM one when they perform the same exact features. I get my OEM Style bosch o2 w/ oem clips for about ~110..im sure they run for higher usually at kragen or pep boys auto stores.
For the plug wires and plugs itself..i just use NGK's wires and plugs..find it to work best for me and can be found virtually at any local autoshops.. Never use the autolite crap from like pep boys or kragen..