Originally Posted By: hominid7
Sounds like dirty/gumed up HLA's to me.
I would start by changing the oil and using something cheap, like walmart supertech, and adding a 1/2 bottle of risoline (an entire bottle at once may be a little too much of a shock). I'd run that for 100-200 miles and then change the oil again, using the other 1/2 bottle of risoline and inexpensive oil, run for 500 miles, and change the oil again, back to your motorcraft.
Thicker oil may be counter-productive in this particular situation.
I like the other posters idea of trying MC 5w20 and seeing what that does as well, although with an exisitng leak, it may make it worse. Then again, the risoline may make the leak worse as well. If you dont mind putting a little $$ into the car, getting the leak fixed with new seals would be ideal.
If using Rislone, use the whole bottle in the Contour, they take like six quarts of oil...
Personally, I would run something like a mix of Pennzoil conventional 5w30 with a quart of Marvel Mystery Oil for a 3K OCI. Then try an oil that claims some cleaning ability such as Pennzoil Platinum/Ultra or M1 High Mileage...