Turn the engine off and engage the parking brake. Doing this task the right way ensures you are reading an accurate measurement, which directly impacts the longevity of your engine.
Check Oil Level on a Cold Engine: Proper Measurement and Adding Tips
This means the vehicle should be parked on level ground, the engine turned off, and you should wait approximately 10 to 15 minutes before looking at the dipstick. The hood will be hot, and the oil spray can be messy.
When oil heats up, it expands. Allow the engine to idle for a minute or two, then turn it off and wait as long as possible—up to 30 minutes—before checking to let the oil settle as much as it can.
Check Oil Level on a Cold Engine: Proper Measurement Tips
If checking cold, you can add oil and wait for it to settle. The state of the oil—whether it is hot or cold—changes its volume and viscosity, leading to significant differences in the dipstick reading.
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