This is a very valid question since 4 stroke engines have a dedicated lubrication system. The reason for the lubrication oil to be mixed with gasoline is that the crankcase is used for pumping and circulating air-fuel to the combustion chamber. Therefore, the crankcase cannot have an oil sump to store the oil.
The oil is mixed with gasoline and as the combustion process takes place, the oil settles on the walls of the combustion chamber, bearings and other wearable parts. This is the simplest and cost effective way for lubrication in 2 stroke engines. But the oil might burn with gasoline and can result in blue colored exhaust smoke
The oil is mixed with gasoline and as the combustion process takes place, the oil settles on the walls of the combustion chamber, bearings and other wearable parts. This is the simplest and cost effective way for lubrication in 2 stroke engines. But the oil might burn with gasoline and can result in blue colored exhaust smoke
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