Been mighty cold these last few days and on cold morning starts my oil cooler has began to leak and then stops after it warms up, need to get it fixed before "winter" does finally settle in, I reckon my first question is will it be ok to drive it for a couple of days? Any risk of coolant and oil mixing? And as far as the repair goes does any one have any advice or tips on doing this repair? I seen the video that diesel tech Ron has where he just removes the rear header and leaves the front in and seems to easily get it back together, almost to easy If you ask me lol, is this a good way to do it? The gasket on the front is not leaking, just the o ring, got all new Ford parts waiting.