How to Check Your Engine Oil

About 5 minutesEasy7 steps

Last updated August 24, 2026· How we research and review

Low oil kills more engines than any other neglected fluid, and checking it takes five minutes with nothing more than a paper towel. The dipstick only reads true when the car is level and the oil has drained back into the pan. Check monthly and you will catch leaks and oil consumption long before the warning light does.

Checking oil is low-risk, but keep hands, hair, and clothing clear of belts and fans if the engine ran recently, and watch for hot surfaces. If the oil looks milky or foamy, or the level keeps dropping between checks, have a shop diagnose it before you drive further.

What you'll need

Paper towel or rag (for wiping the dipstick)
Owner's manual (some cars specify a warm-engine check)
The correct engine oil (only if you need to top off)

The steps

Tap through one step at a time — built for one-handed use at the roadside — or switch to all 7 steps to read ahead or print.

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Step 1: Park level and let the oil settle
Park on level ground, switch the engine off, and wait 5–10 minutes so the oil drains back into the pan. A check right after shutdown reads low and fools you into overfilling. Some cars specify a warm-engine check instead — if your owner's manual says so, the manual wins.
Step 2: Find the dipstick
Look for a loop handle, usually yellow or orange, sticking out of one side of the engine. Some newer cars have no dipstick at all — the oil level lives in the vehicle menu on the dash instead, so check the manual if you cannot find the handle.
Step 3: Pull it and wipe it clean
Pull the dipstick all the way out and wipe the blade clean with the rag or paper towel. The first pull always smears oil up the tube, so that reading means nothing — ignore it.
Step 4: Push it fully home again
Reinsert the dipstick and push it all the way down until it seats. This is the step everyone skips: a half-seated dipstick picks up splash from the tube and reads wrong in either direction.
Step 5: Pull once more and read the film
Pull the dipstick out a second time and hold it flat. Read the oil film against the MIN/MAX holes or the crosshatched area at the tip — you want it at or near MAX. Note the color and texture too: healthy oil is a translucent amber-to-brown film, not gritty or sludgy.
Step 6: Top off half a quart at a time
If the film sits below MIN, unscrew the oil filler cap on the valve cover — marked with an oil-can pictogram or a viscosity like 5W-30 — and add a small amount, then recheck. The gap between MIN and MAX is often around a quart, but it varies by engine and your owner's manual gives the figure for yours — so add in small pours rather than trusting a number.
Step 7: Recheck — and stop at MAX
Wait a minute for the fresh oil to run down, then repeat the wipe-and-read. Stop at MAX: overfilled oil foams against the spinning crankshaft, loses its ability to lubricate, and stresses engine seals.