I,ve put a tank of fuel through it, it,s seems like a really nice unit for the money. I could of bought Stihl BG55 for 10 dollars less but I,ve had really good luck with my ECHO stuff. And the all my ECHO,s use the same air filter,fuel filter, spark plug. The power is great, it blew wet leafs great and dry leafs a country mile. The only thing I noticed was you need to keep the intake fan away from your pants ( the Stihl blower is on the other side) and I wonder if I had a flat tube on it if it would even more effective. But so far for an entry level machine ECHO did a very good job with this.