My wife and I have had 2 Contours, 95 SE and 98 SE. These both recommended 5-30. we recently replaced the 95 with a Cougar; same V6. It recommends 5-20.
I've used Mobil 1 5-30 in all of them. They don't use any oil whatever.
Injected cars start so quickly, you want oil moving immediately, especially in cold weather.
I'd go to 10-30 where the temperature doesn't get below freezing.
