what happens
Nothing happens, they just mix. You can buy "blended" motor oil.
No, coconut oil do not dissolve in kerosene
The Sudan IV dissolves into the oil making the oil red.
You have a mess.
The oil will float above the water, as they wont mix with each other, and oil is lighter.
The mix won't set properly, and the lifespan of your cement form will be shortened considerably.
you get lovely salad dressing
Synthetic and conventional oil can be mixed and used with no problem. That is exactly what a synthetic blend that you can buy is. A mix of synthetic oil and conventional.
Oil and water do not mix due to their different densities and polarities. When shaken together, the oil and water will temporarily mix and form small droplets of oil in the water, but they will quickly separate back into distinct layers due to their immiscibility.
not much. it would change the viscosity of the oil. the diesel oil is much thicker than regular engine oil.
It will destroy the engine from lack of lubrication and overheating.
Oil treatments is a total waste of money so don't mix anything with the synthetic oil.