Should Engine Be Running When Checking Oil?

1. Park your car on level ground to ensure you get an accurate reading. Turn off the engine and wait 10 to 15 minutes for it to cool down. Manufacturers used to recommend that you check your oil when the engine was cold, to give the oil a chance to settle in the oil pan.

Is it better to check oil with engine running?

Answer. We recommend checking the oil level either before turning on the engine or 5 to 10 minutes after shutting down so you can have all the oil in the oil pan to get an accurate measurement.

What is the proper way to check oil?

With the engine off, open the car's hood and find the dipstick. Pull the dipstick out from the engine and wipe any oil off from its end. Then insert the dipstick back into its tube and push it all the way back in. The dipstick shows the oil is low and needs to be topped off.