Why is oil a cream color in a boat motor?

Boat motor is about a 1976 model mercruiser.Why is oil a cream color in a boat motor?
Oil should be a honey color, just like in your car. However cream color indicates a major problem. This is true of car and boat engines. Whether it's a blown head gasket or a cracked block, from freezing, or rust through. This engine is 33 years old, so I would be careful about undertaking major overhaul. It's replacement time.Why is oil a cream color in a boat motor?
On the older engines there are Hex plugs in the heads next to the valves and when raw water cooled they corrode and leak water into the head and that is mixed with the oil. That's just 1 area intake manifold leaking.Exhaust manifold leaking.Oil cooler leaking.
water probably got into the oil somehow
Water in the oil for sure. Don't run it any more till the problem is fixed.
the seal,s in the unit need to be replaced,