What is wrong when you have oil in your warter but no warter in your oil?

You probably need to replace the head gaskets. The oil pump when functioning properly makes much more pressure than the coolant system. As a result, when the head gasket fails, oil can make its way into the coolant system.

1. What does it mean when there's oil in the water?
2. Why is there oil in my coolant but no coolant in my oil?

What does it mean when there's oil in the water?

In some light or heavy damage to the gasket, the oil and the coolant can eventually start to mix. Damage to the cylinder head to is another main reasons for the mixing of these fluids. The cracked or damaged cylinder head might be a result of overheating, overuse of the engine or a heavy impact in the accident.

Why is there oil in my coolant but no coolant in my oil?

Normally it's either a cracked head or a cracked block, usually caused by cold weather with improper antifreeze or by running the vehicle without proper amount of coolant or engine cooling fan issues.