my antifreez keeps disapearing , i havent seen it in my oil , not on my floor , and not on the ground , could a intake or head gasket b the problem ? maybe getting sent out the exhaust ? i noticed a very little bit on my oil cap , but not on my dipstick , my intake was wet the other day i thought my gooseneck was leaking , i tightend it down and my hoses , filled it back up with the heat on and engine hot , took close to a gallon , it was down again this morning but nothing was wet , nothing in my oil , and a little bit on the oil cap again , but not a gallon