I have afew questios regarding my C70. I just bought it a week ago and it only has 100600 miles on the odometer. The oil needs changed and I was wondering what oil I should use? 10W-30? Also what oil filter should i use? I'm getting a K&N air filter to install in it after I replace the MAF Sensor and i was wondering if that would be the right route to go with it. Also I'm open to suggestions to what other things I need to have done to it.