My mom has a 95 or 96 camry that leaks oil when you start it up. When you pull it out of the garage you can see drips of oil every 6 inches or so. It only leaks for a minute or until the car is warmed up a little. I think its the rear main seal but if anyone has any other suggestions please do so. And also how hard is it to replace the rear main seal. Thanks!

Karl