you need mountfield universal oil next time you tip it make sure that the exhaust is pointing up ward and the carb is pointing to the ground
david
April 2010
No damage will be done, but you may need to clean the plug and air filter to restart it, and the engine will smoke for a while. Fill the sump up with a straight grade SAE30 oil if you have some, but ordinary car oil of 10/30 or 15/40 multigrade will be ok.
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