Hi guys, i have lexus 2006 RH 400H. Its a nice car, i also saw a low engine oil message and sound on the dashboard. When I wanted to start moving today, I was terrified. I got to where I was going without issue and back home and wait for it to be cool, then checked the engine oil gauge. It just past the top line on the lower line. It shows the oil reduced. I have top it up. Please what can I do if it repeat itself.