Milky white oil on dipstick of my 1994 Grand AM?

Coolant is leaking into your oil. This is a serious problem that can damage your engine if not repaired immediately. Coolant is a mixture of water and antifreeze that helps to keep your engine cool. When coolant leaks into your oil, it can cause the oil to become too thick and sludgy, which can block oil passages and cause your engine to overheat.

Here are some of the most common causes of coolant leaks:

- A cracked or damaged cylinder head. This is the most serious cause of coolant leaks, and it can be very expensive to repair.

- A blown head gasket. This is a less serious cause of coolant leaks, but it can still be costly to repair.

- A cracked or damaged radiator. This is a relatively inexpensive repair, but it can be difficult to access the radiator on some vehicles.

- A loose or damaged coolant hose. This is the easiest and most inexpensive repair, but it can also be the most difficult to find.

If you notice milky white oil on your dipstick, it's important to have your car inspected by a qualified mechanic as soon as possible. Continuing to drive your car with coolant in your oil can cause serious damage to your engine.