If your oil light is coming on and your dipsticck funnel is broken, you are probably low on oil, becuase the dipstick is now going way too far. Add half a quart and see if that stops the light from coming on.

 

THe biggest thiung to remeber is you have a 2002. which means you already have the updated tensior which is waht usually fail prematurely. I would say you are good until the 105,00 mi interval but most say change it ealry if you have the money. I was told that you can safely wait until 95000 and change it a little early. I have 97000 and I am doing mine this weekend