4Low
New member
Not sure where the sand or clay is from. Must be either the block or the radiator im guessing the block. Way more clay than a heater core would ever hold so its got to be the block i would think. The thought of where else the clay may have gone kinda scares me but i wont own it when its out of warranty anyway i guess. Ive changed the oil in it everytime except once and never seen anything abnormal in the filter or coming out the oil pan.