none 2 cycle engines run a gas/oil mix for lubrication
If the engine is a 2 cycle engine it has no crankcase and therefore there is no way to change the oil as it is mixed with the fuel.
If you do not use oil in the engine it will destroy itself due to lack of lubrication. If it is a 2 cycle you mix 2 cycle oil with the gasoline to lubricate the engine. If it is a 4 cycle then you put the oil in the crankcase to lubricate the engine.
I don't know the science behind their chemistries, but personally I would not use 2 cycle oil in a 4 cycle engine. 4 cycle oil is cheap enough, use the right stuff.
Yes. Any internal combustions needs oil for lubrication. 4 cycle engines have a provision for oil storage in a crankcase. 2 cycle engines require you mix 2 cycle oil with the gasoline.
Depends on the lawnmower. Some older lawn mowers used two-stroke engines, and you mixed the two-cycle oil with the gas. But 99% of modern lawnmowers use a four-stroke engine with a crankcase. So if the question is: "Can I use two-cycle oil in the crankcase?" the answer is an emphatic NO. It will likely destroy the engine.
If you have to add oil to the fuel, it is a 2-cycle engine. If you have to add oil through a filler spout into the crankcase, it is a 4-cycle engine.
If the engine has an oil sump and an oil filler spout, it is a 4-cycle engine. On a 2-cycle engine, oil must be added to the fuel.
2-cycle oil in most cases can be used as long as it is used in a 2-cycle motor. The answer to your question is NO, you cannot use 2 cycle oil in any engine. Only use 2 cycle oil, in a 2 cycle engine.
No - it is formulated very differently. The crankcase of a four stroke engine needs conventional engine oil. DO NOT use two stroke oil in the crankcase.
Only if it is a 2 cycle engine and you mix the oil with the gasoline. If it is a 4 cycle engine, then using 2 cycle oil will destroy the engine over time. Use SAE 10w30 synthetic oil in your air cooled 4 cycle engine.
in place of the crankcase oil yes, mixed in the gas it shouldn't if it isn't to strong
2-stroke engines run on a gas-oil mixture put directly into the gas tank. They do not have a crankcase that holds oil separately like most normal 4-stroke engines.