I have an oil leak from my passenger side valve cover. It has leaked down to the cat, and now my cat smokes after I drive it for a while.

I have no time/money/tools to fix this leak, I just want to slow it as much as possible. What's a good oil leak stopper?

On a side note...my car is now burning some oil on startup 103K, 5W-30 Mobil 1

 

You can try some Auto-RX. Check out www.bobistheoilguy.com and read some of the feedback on people that have used it. I used it in my GF's sister's car that was using about a half quart every 1,000 miles...last oil change it was only half quart low after 3,000 miles. It isn't a instant fix though, it takes 1,000 to work.

You can try some of the higher mileage oils or try a thicker oil to try to slow it down.

Good luck with it though brother.