6.0 loss of coolant help

[The_Duke]

Hi all I am new to this site and also new owner of a 6.0 I just bought a 2004 f250 lariat with 95000. Ive had it a week yesterday. Two days after I got it i noticed marks on degas bottle where a very small amount of coolant came out from cap. I called the dealer and they said bring it in so the next day i did. they said it was overfilled and the cap was bad. they removed some coolant and replaced the cap. All was good for two days. Last night I drove it to maryland and back which is about an hour each way. When i got home last night i noticed again that there was wet marks where coolant had leaked. I havent actually witnessed any coolant leaking and the truck has been running great. does anyone have any idea what it can be? there doesnt seem to be any smoke from exhaust and like I said it is running great. one thing i have noticed is it cranks longer when engine is warm then when it is cold which doesnt realy make any sense to me. Any help would be greatly appreciated thanks all in advance

[The_Duke]

oh and one more thing the truck is completely stock in every way other than the floor mats.. any ideas i bought a warrenty but it doesnt kick in till till 30 days after sale which is a couple weeks away. is there any tests i can do.

[TowBoss]

Does it look like this??

[03haus]

The min level is actually the full level there is a sticker you need to put n the degass bottle for this.

[The_Duke]

the sticker is on there now. they put it on there when i took it there the first time. apparently the one diesel tech the ford dealership has overfilled it and when i brought it back realised his mistake after they tried blaming me saying i must have toped it off. and about the pic it doesnt look nearly as bad as that Ill have to get a pic in the morning.