have gasoline in the oil. If you just suspect it, I would change the oil and monitor it. While leaking injectors could theoretically cause that, it's not something common, at least on the gas engines, and if it was leaking to the extent that it overcomes an oil leak and still causes level to rise, you probably already have engine damage, and it really ought to stink of gas.

Also, the green dots on your oil pan aren't coolant. They look like paint dots that someone marked on there.

Skol!