i think i have a probleem with my engine (Toyota Estima with 350.000km). It would not start, i just hear a single click. The battery is fine. I checked oil, and the oil is low. I tried starting the car a few times and suddenly it started turning over and started the car, with a lot of effort. It didn’t go smoothly. Driving afterwards went ok. Is this because of the low oil and is it not too late to top it up?