It won't hurt the engine but it will hurt the catalytic converter.
Absolutely!
When sugar is placed in a car engine, it can clog up the engine. This may leave it not working properly and would have to be flushed or replaced.
No it does not affect
Yes
if you mix the ratio right with the gas it will boost power to engine as far as hurting engine i cant see why it would hurt it .
No it won't hurt the engine BUT you could get carbon monoxide in the car. Don't sit in a parked car with the engine running if your exhaust is bad - it could kill you.
Repeated attempts to start a car will not hurt a car as long as the engine has the oil it's supposed to have. However, they aren't good for the battery.
it adds a lot of strain on the engine especially if the drive train is directly under the engine. (front engine fwd, or mid engine rwd)
no
Yes. Can clog coolant passages in your engine and other areas.
Sugar is to food as gasoline is to a car. Just like how a car needs gasoline to run, food often needs sugar to taste good and give us energy. But just like how too much gasoline can ruin a car's engine, too much sugar can wreak havoc on our bodies. So, enjoy your sugar in moderation, just like you would with a car and its gasoline.