Having a hard time cleaning it off from all the bugs. Dont think the garden hose does its job unless one whats to put major pressure to it which will damage the fins. Dont like forcing bugs deeper into it with a lite garden hose spray, cant really get behind it to spray it outwards.The grill is pretty wide open and the radiator can catch rocks and other thing to. Have not tried a shop vac carefully to get the most of it off any one have other ideas. Dont think there is any pre guard made. Over the years with my G1 it wasnt lookin good after all the care and i think this G2 will be worse, maybe its nothing to worry about and just let mother nature take care of it.