¡Hablamos Español!    

How to Check Engine Oil Level: A Simple Guide for Drivers

Keeping up with your vehicle’s oil level is one of the easiest and most important steps in car maintenance. Low or dirty oil can lead to engine damage, costly repairs, and poor performance. At Tres Amigos Auto Service, we want to empower our community with the knowledge to stay ahead of vehicle issues. Here’s a step-by-step guide on how to check your oil using the dipstick (also called the oil wand) and how to visually judge your engine’s condition.

Step 1: Park on Level Ground

For the most accurate reading, make sure your vehicle is parked on a flat surface. Turn off the engine and give it a few minutes to cool so the oil can settle back into the pan.

Step 2: Locate the Oil Dipstick

Pop the hood, and look for the dipstick. It usually has a bright-colored handle (yellow, orange, or red). If you’re unsure where it's located, consult your owner’s manual or ask our team for guidance.

Step 3: Pull and Clean the Dipstick

Remove the dipstick and wipe it clean using a lint-free cloth or paper towel. This ensures you’re reading the current level and not residual oil left from earlier use.

Step 4: Reinsert and Remove for a Reading

After cleaning, reinsert the dipstick fully and then pull it out again. Look at the tip to find the oil level indicators, typically marked as “Full,” “Low,” “Min,” or shown with lines or holes.

  • If the oil level is between the marks: Your oil is at a safe level.
  • If it's below the minimum mark: It’s time to add oil or schedule service.

Step 5: Use Visual Judgment

Checking oil isn’t just about the level. The appearance of the oil can reveal a lot about your engine’s health:

  • Clear to light amber: Fresh or healthy oil.
  • Dark brown or black: Dirty oil that may need changing soon.
  • Milky or foamy: Possible coolant contamination—contact our shop at (408) 287-6833 immediately.
  • Metal flakes: Potential internal engine wear.

If your oil looks questionable, bring your vehicle to our qualified technicians to avoid long-term damage.

Step 6: Top Off as Needed

If the dipstick shows low oil, use the correct oil type recommended for your vehicle. Add a small amount at a time, then recheck the level to avoid overfilling. Too much oil can cause just as much harm as too little.

Why Oil Checks Are Essential

Routine oil checks can help you:

  • Prevent engine overheating
  • Extend your vehicle’s lifespan
  • Improve performance and fuel efficiency
  • Avoid expensive repairs

Even with regular oil changes, inspecting your oil every few weeks, or before a road trip, is a smart habit.

When to Visit (408) 287-6833

If you see leaks, smell burning oil, or notice rapid oil loss, schedule an appointment with our team in San Jose, CA. A quick inspection can prevent major problems before they start.

Keep Your Engine Protected

Checking your oil with the dipstick and using visual judgment is quick, easy, and essential for vehicle health. If you ever feel unsure or notice something unusual, our auto repair shop is here to help. Contact us today for an oil change, inspection, or professional guidance to keep your engine running smoothly. Tres Amigos Auto Service