Is it a 2 stroke or 4 stroke? if it has a plug on the bottom above the blade to drain oil (look under the deck on the bottom of the engine) it is a 4 stroke and you do not mix gas / oil in this type of engine. It works just like your car, change the oil every 2 months and keep good gas in the tank. If the engine has no oil plug to drain oil it is a 2 stroke and you do need to mix the oil / gas. is should mix at a 1 to 32 ratio. use low ash oil.
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Is it a 2 stroke or 4 stroke? if it has a plug on the bottom above the blade to drain oil (look under the deck on the bottom of the engine) it is a 4 stroke and you do not mix gas / oil in this type of engine. It works just like your car, change the oil every 2 months and keep good gas in the tank. If the engine has no oil plug to drain oil it is a 2 stroke and you do need to mix the oil / gas. is should mix at a 1 to 32 ratio. use low ash oil.