Magyver

I have a loud wine when I turn. This happens during the first to 10 to 15 minutes then it goes away. There is a leak somewhere, but I can't find it. I go through a pint a week though. I will look harder this weekend, but does anyone know why the noise is there and goes away. I notice after maybe 5 minutes of driving then I turn the car off for a few minutes and then back on the noise disappears. If I let the car cool for a few hours then the noise returns.