I. Prob ran the damn thing only a few times its soo cheap that even the screws used to screw the engine on the engine mount broke I mean everything on that thing was bad I would take it out and a new problem would accour but I have to give it to them they are fast anyways I sold mine yest because it was a piece of junk in my opinion and redcat claims to have a great warrenty but when my gas tank was leaking I called them up and they told me to send it the old one and they will inspect it and told me I have to pay for the shipping which cost more than a new gas tank and if you order from redcatracing.com they messed up my order 3 times......wow never again bad bad bad I suggest anyone who wants a redcat racing car don't even think about it put a lil more money and get a traxxxs or somthning because you will end up spending money fixing the damn thing after every run