Well please dont give me too much flack for asking a ford question here. Well i whent to top off my oil in the inline six in my f-150, i noticed some froth in the filler cap which is a breather type that hooks to the air filter. I ask some people and they say its normal but check the PCV valve. Well i do that and theres the same froth, obviouse oil and wtter interaction type stuff. Well after dumping a quart into the motor i pull the dipstick and see the same froth. Now heres the confusing part, im not loosing coolant and not over heating, so i dont think its a head gasket. Well any help is apreiciated, the guys on the ford truck websites tend not to know thier ass from a hole in the ground and arent beeing much help.