last summer my son straight gassed my weed whacked while doing the yard , it started revving up like a chainsaw i came outside and told him to stop doing that , and not blow it up , he said it just started running good so he figured he would just go with it , i looked in the tank no oil what so ever, even after i showed him the jug marked "weed eater " .... oh it still runs it just rattles like a box of hammers , i tore it down and didn't see anything that looked that bad except the roller bearings..he probably ran a whole tank through it ....