ok so i have a 2004 WRX and was driving the other day just about a day after an oil change and used lucas heavy duty oil stabilizer and was driving after i detailed my car and heard a pop noise when i was pulling out at the light and just thought it could be my tires from the tire shine. it went away and ran fine and had my car in the shop the next day for them to fix a rattle on my heat shield above my turbo and they said i had oil on my oil pan. at first i thought it was their mistake when they chagned the oil. sprayed the pan with parts cleaner and inspected it. looks like the oil was coming from my dipstick tube. took the dipstick out to find on of my o rings was damaged. but before doing this i ran the car for 3 days with no leak then after coming home and running the car a little hard to pass some people coming up the hill i stumbled upon a very minor oil leak. coming from the dipstick. replaced the o rings and seems to be ok. going to keep an eye on it but also heard the oil pickup tubes go bad and my oil pan also looks a tad rusty. should i put the extra money into buying a new pan? any advice would be great guys.