Posting for a friend cause I think this is ODD: Buddy goes to check the oil in his 2005(?) Honda 4 stroke 50 horse. Pulls the dipstick and oil shoots out all over him/engine. The oil is murky...it has water in it. So he drains it. The engine takes 2 quarts, but he drains 4 quarts of oil/water mixture! Mind you, a week earlier the motor ran perfectly fine. So he takes it to a Honda mechanic who performs a compression check and leak down test. Compression check turns up normal, even pressure across all cylinders. Ditto on the leak down - normal. Head gasket seemed OK, acc to mechanic. Mechanic can't find anything wrong, changes oil, starts it up, it runs fine. Checks the oil, oil looks fine. So how does ~2 quarts of water end up in your Honda's crankcase if the head is ok, block is ok, and the engine is running smoothly? Anyone have any ideas?