I have a 1984 Honda Civic that I bought off my brother for 0. At that price, I sure can't expect much, but I do know full well that he drove it about 1000km a week sometimes.. Fairly often too. Anyways, he sold it to me because he moved away, and drove it up until that day. It sat in my driveway for about 5 months while I got some shit together and got my license. I made a point to start and run it at least 3 times a week for about 15 minutes each time. Today I was out for a drive and I noticed this odd rattleing sound coming from the bottom of the engine. I also noticed that my oil light kept coming on. I took the car home and checked the oil - there was too much, and it was dirty as hell (I'd forgotten to look at it while it was sitting). Needless to say, I changed the oil right away. After that, I gave it another spin, and the noise returned. The funny thing is, it doesn't happen when first starting the car. It only happens after it's been driven a while, and happens both when the car is moving and when stopped or in neutral. (5 speed manual) My brother thinks its the oil pump.. What do you guys think? Thanks a lot!