<human>:  How do you check a car's oil level?
<bot>: To check a car's oil level, pop the hood and locate the dipstick. Pull out the dipstick, wipe it off with a cloth, and then insert it back into the opening. Remove it again and check the oil level – the stick should be coated in oil up to the “full” line. If the level is below this line, the oil should be topped up.