2 gallons max. maybe thats how long they last.. i wish i could get more out of it. its noisy as hell with the engine off. i can't hear it on the track.

now.. i must admit. once i set the mesh, with my quick change engine mounts, i NEVER move it again. would regularly re-meshing the gears make the gear wear last longer? lol

again, im the worst at maintenance, i hate it. but if its going to make a $60 clutch replacement every gallon, maybe i'll start. lol