Add more, this can cause internal damage to the engine to the point where is destroyed. A little extra will cause rougher running, and extra smoke, but is better than not enough.
You can not use 4-cycle oil in a 2-cycle engine because the four cycle oil will not mix it is not designed to.Two cycle oil is designed to mix with fule to lube the two cycle parts in your motor.
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.
No it is 4 cycle oil, 2 cycles is the only oil you mix with gas for 2 cycle engines. They may be referring to a syn/ conventional oil mix that they have preformed to improve their oil. It will work fine in your 4 cycle engine as long as it is the correct weight for your engine. As long as it is like 10w30 you should be good to go.
none 2 cycle engines run a gas/oil mix for lubrication
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.
The type of oil you use depends on the type of engine you have. A good way to tell if it is a two-cycle or 4-cycle is to look for an oil filler cap - usually a screw-in cap about 1 to 1-1/2 inches in diameter. If the engine has an oil filler cap, it is a 4-cycle engine and you add 30-weight oil through the filler hole. If there is no oil cap, then the engine is a 2-cycle and you must mix 2-cycle oil with the gasoline. If it is a 2 cycle be sure and use only 2 cycle oil in the mix.
If your engine does not have an oil reservoir where you need to add and change regularly, and it does not have a dipstick to check for proper oil level, it is very likely to be a 2 cycle engine. You will need to mix Fuel and 2 cycle engine oil. The engine internals gets lubricated thru the fuel / oil mix. If you do not know the proper mix ratio, you can start with a 40:1. My lawn equipment service company even recommends this mix when you have 50:1. It just gives the engine better lubrication with a negligible difference in performance.
A 2-stroke engine requires adding 2-cycle oil with the gasoline.
Good question and also is more or less oil needed in the mixture for a 2 cycle engine?
Oil is mixed with Petrol in what is known as a 2 cycle engine. This type of engine has no lubrication built in (as say an oil tank on a 4 cycle engine) so as the fuel/oil mixture burns lubrication is provided to the cylinder.
If the engine is four-cycle, the valve seals may be worn, causing a small amount of oil to seep into the piston cylinder or combustion chamber. If it is two-cycle, the oil/fuel mix may have a little too much oil.
Look on the oil container and the engine that you want to use it in. The engine will tell you what ratio to mix the oil and gas at. The container of oil will tell you what amount of gas should be mixed with it. I have found that the best way is to put the oil into an approved gas can and then add the gas to it. This helps to mix the oil better.