Thus, the oil filling device may accommodate various heights and angles of engine oil filling hole and allows filling of oil into {HEAD ~ the engine} to be conducted in {TAIL ~ a smoother manner} 
Thus , the oil filling device may accommodate various heights and angles of engine oil filling hole and allows filling of oil into { HEAD ~ the engine } to be conducted in { TAIL ~ a smoother manner }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL