I am not sure what you are asking but putting oil for diesel engines in a gasoline engine with some oil in it would not be good, or vise versa
Yes you can mix oil and diesel for burning brush and stuff just don't put it in any engines!
There are many different types of insulating oil. Quite a few are non-flammable. Some are 2 carbon atoms different to diesel.
apparently cooking oil with diesel
not much. it would change the viscosity of the oil. the diesel oil is much thicker than regular engine oil.
Yes, you can also mix it with conventional oil creating a blend.
Blown head gasket
Non-renewable...
You should drain all the oil out and put the correct oil in.
Only if you have time to fix the resulting non running mess. Diesel fuel, no. Diesel engine oil, yes if it is the proper weight.
No - they are not designed to run on gasoline. You need diesel fuel or some can be run on vegetable oil or cooking oil but not gas it will wreck your engine. It detinates too hot.
Diesel is made by refining crude oil. It's a non-renewable, fossil fuel.
Oil will mix well with other non-polar liquids such as other types of oil or organic solvents like hexane or ethanol. Oil will not mix with water, which is a polar liquid.